Back

The Journal of Nutrition

Elsevier BV

Preprints posted in the last 90 days, ranked by how well they match The Journal of Nutrition's content profile, based on 11 papers previously published here. The average preprint has a 0.08% match score for this journal, so anything above that is already an above-average fit.

1
Absorption Kinetics of Vitamins and Minerals from a Novel Nutritional Product in Healthy Adults: A Randomized, Double Blind, Placebo-Controlled Crossover Trial

Sapp, P. A.; Townsend, J. R.; Kirby, T. O.; Edwards, C. G.; LaMonica, M. B.; Ziegenfuss, T. N.; Vernge, M. J.; Akers, W. S.; Esposito, R.

2026-01-06 nutrition 10.64898/2026.01.05.25342664
Top 0.1%
166× avg
Show abstract

Background/ObjectivesNutrient interactions in multi-ingredient supplements may influence absorption and bioavailability, yet pharmacokinetic data in this context remains limited. This clinical trial assessed the post-prandial absorption kinetics of key micronutrients in AG1, a comprehensive supplement containing vitamins, minerals, probiotics, and phytonutrients. MethodsIn a randomized, double-blind, placebo-controlled crossover trial 16 healthy adults (8 males and 8 females) consumed a single serving (13g) of AG1 or a taste- and appearance-matched placebo mixed in water, following a 10-hour overnight fast. Each condition was separated by a 1-week washout. Blood samples were collected pre-consumption and at 30, 60, 90, 120, 180, 240, 360, and 480 minutes post-ingestion. Plasma concentrations of folate, calcium, zinc, vitamin C, biotin, nicotinamide, pyridoxine, riboflavin, thiamin, and hesperidin were measured. Area under the curve (AUC0-480 min) was used to assess nutrient absorption. Safety and tolerability were assessed throughout the study. Statistical analysis included repeated measures ANOVA and paired t-tests. ResultsAG1 significantly increased AUC0-480 min values (p<0.05) for all measured nutrients except pyridoxine which revealed a strong trend (p = 0.075) and hesperidin (p = 0.224). Both AG1 and placebo were well tolerated, with no serious adverse events reported. ConclusionsAcute consumption of AG1 resulted in measurable increases in circulating levels of most of the tested micronutrients, indicating effective absorption and bioavailability. These findings support the potential of AG1 to contribute meaningfully to nutritional status and overall health.

2
Preoperative multi-nutrient medical food versus fasting control in adults undergoing elective surgery: a single-center pilot trial

Zimmerman, B.; Goldenberg, J.; Marx, T.

2026-02-15 nutrition 10.64898/2026.02.12.26345765
Top 0.1%
165× avg
Show abstract

BackgroundThe surgical stress response is a predictable, physician-managed metabolic state triggered by anesthesia and tissue injury, marked by insulin resistance and hypercatabolism that create unique nutritional needs unmet by standard, pre-surgical fasting diets. We developed a multi-nutrient medical food to support perioperative metabolic homeostasis and piloted its safety/tolerability and exploratory outcomes. MethodsIn a single-center pilot trial (n=67) of adults undergoing elective abdominal, cardiac/thoracic, gynecological, or orthopedic surgery, participants were allocated to medical food or no-treatment control. The product was taken twice preoperatively (evening before and 4 h pre-op) with standard care. Primary safety outcomes were adverse events, postoperative nausea/vomiting (PONV), 30-day readmission, and infections. Exploratory outcomes were fasting glucose, HbA1c, electrolytes, cortisol, pre-operative emotional state, and post-operative pain. ResultsAll participants completed the intervention. No product-attributed adverse events occurred. Gastric clearance was achieved within 2 h in all, and there were no 30-day readmissions or infections. PONV occurred in 30.3% vs 35.3% (risk ratio 0.86, 95% CI 0.43-1.71, p=0.796). Post-operative glycemia favored the intervention; at 48 hr the intervention group showed lower glucose (HL -9 mg/dL, g=0.35, p=0.030), while earlier timepoints were nonsignificant. Post-operative magnesium was numerically lower with intervention (4.76 vs 5.10) without statistical significance; other electrolytes and cortisol showed minimal differences. Post-operative pain was 5.33 vs 5.62 (g=0.19, p=0.43). Positive pre-operative emotion was more frequent with intervention (17/33 vs 9/34; risk ratio 1.95, p=0.046). ConclusionThe medical food was safe and well tolerated without increased PONV or readmissions. Preliminary metabolic and emotional signals justify a larger, adequately powered efficacy trial. Clinical Relevancy StatementThis pilot trial demonstrates that a preoperative multi-nutrient medical food was well tolerated and feasible to administer in a routine clinical setting: all participants achieved gastric clearance within 2 hours of the pre-operative dose, with no increase in PONV and no readmissions. Exploratory findings indicate potential benefits that could nutritionally support recovery if confirmed. These results support the feasibility of administering a targeted nutrition intervention shortly before surgery and justify evaluation in a larger efficacy trial. Clinical Trial RegistrationNCT07359222

3
Effects of an infant formula containing a whey protein concentrate on feeding tolerance and markers of intestinal immune defense in Chinese infants

Wang, Y.; Liu, M.; Dogra, S. K.; Vidal, K.; Godin, J.-P.; Dawish, N.; Wei, X.; Reymond, L.; Li, Q.; Dong, J.; Vyllioti, A. T.; Bettler, J.; Kennedy, E.; Wang, K.; Zhai, Q.; O Regan, J.; Samuel, T. M.; Cai, W.

2026-02-17 nutrition 10.64898/2026.02.11.26345996
Top 0.1%
157× avg
Show abstract

BackgroundHuman milk (HM) bioactive components can have immune modulatory functions, impact the gut microbiome, and may result in functional benefits when added to infant formula (IF). In this single-arm, prospective, intervention study, we tested the effectiveness of an IF with a whey protein concentrate co-enriched in -lactalbumin, milk fat globule membrane (MFGM), and Sn-2 palmitate resulting in protein and lipid profiles observed in HM. The outcomes tested were feeding tolerance, Bifidobacteria abundance, and intestinal and immune health of Chinese infants. MethodsPredominantly formula-fed (FF) and breastfed (BF) infants were enrolled between 3 and 28 days and assigned to the FF (N= 60) or BF (N=60) group, per their feeding practice, for 6 weeks. The primary endpoint was Infant Gastrointestinal Symptom Questionnaire (IGSQ) index score assessed using a validated IGSQ-13 questionnaire after 6 weeks of intervention; non-inferiority of FF vs BF was tested. Secondary endpoints included fecal Bifidobacteria abundance assessed using shotgun metagenomics sequencing; fecal short chain fatty acids (SCFAs) analyzed by ultra-performance liquid chromatography-tandem mass spectrometry; fecal markers of immune response, inflammation, intestinal barrier integrity (secretory immunoglobulin A sIgA), cytokines, calprotectin, 1 antitrypsin, lipocalin-2) assessed using enzyme-linked immunosorbent assay; stool consistency assessed using gastrointestinal (GI) diary; anthropometric assessments; quality of life; physician reported adverse events; and use of medications. ResultsGood GI tolerance was observed in both groups at V2 (mean{+/-}SD IGSQ score FF: 19.9{+/-}7.4; BF: 16.8{+/-}4.2); difference of means 1.35 [95% CI: -1.312, 4.012]). After 6 weeks, Bifidobacterium genus relative abundance was not significantly different between the groups. Total SCFAs were significantly higher (p<0.05) in the FF versus BF group, driven by increased levels of valeric and propanoic acids (p<0.05 for both). The IGSQ domain scores, stool consistency, fecal markers of immunity, inflammation, and intestinal barrier integrity (except lipocalin-2 which was significantly higher in BF vs FF), anthropometric Z-scores, common illnesses, antibiotic use, and adverse events were not significantly different between groups at week 6. ConclusionsOur results support the effectiveness of this tested infant formula in supporting good GI tolerance, growth, specific intestinal and immune health markers, and Bifidobacteria abundance similar to that of the BF group. Trial registrationNCT04880083 (2021-05-06)

4
Effects of Omega-3 Fatty Acid Treatment on Risk for Atrial Fibrillation: An Updated Meta-Analysis of 34 Trials including 114,326 Individuals

Abuknesha, N. R.; O'Keefe, J. H.; Qian, F.; Tintle, N. L.; Lin, Y.; Sun, Y.; Qian, H.-Z.; Aisen, P. S.; Albert, C. M.; Aronson, W. J.; Asbeutah, A. A. A.; Bischoff-Ferrari, H. A.; Budoff, M. J.; Burns, N. R.; Cardenas, C. A.; Carlsson, C. M.; Chew, E. Y.; Cohen, N. J.; Fezeu, L. K.; Liddell, A.; Galan, P.; Hull, M. A.; Lan, T.-H.; Lin, P.-Y.; Mengelberg, A.; Minihane, A.-M.; Quinn, J. F.; Sanders, T. A. B.; Schoenfeld, D. A.; Scholey, A.; Sprange, K.; Su, K.-P.; van Dyck, C. H.; Van Hulle, C. A.; Vauzour, D.; Weber, C.; Welty, F. K.; Wittert, G.; Yusuf, S.; Harris, W. S.

2025-12-15 nutrition 10.64898/2025.12.14.25342167
Top 0.1%
147× avg
Show abstract

BackgroundRecent meta-analyses of randomized controlled trials (RCTs) have raised concerns that treatment with omega-3 fatty acids may increase risk of atrial fibrillation (AF). However, these meta-analyses included at most eight trials. The aim of this current meta-analysis was to expand the search by including other eligible omega-3 RCTs with AF incidence data, incorporating both published and unpublished data. MethodsEligible studies were RCTs investigating daily doses of [&ge;]500 mg/d of docosahexaenoic acid (DHA) and/or eicosapentaenoic acid (EPA). Additional inclusion criteria included [&ge;]12 months treatment with EPA/DHA, participants [&ge;] 50 years of age, and where possible, the absence of known AF/atrial flutter at baseline. The primary outcome was occurrence of new-onset AF. Our primary hypothesis was that risk for AF would simultaneously depend on both omega-3 dose (above or below 1500 mg/d) and background cardiovascular disease (CVD) risk status, and that their combined impact on AF risk would be synergistic. ResultsA total of 34 RCTs (36 datasets; n=114,326) were included in this meta-analysis. Only studies including patients at high-risk for CVD who were treated with high-doses of EPA/DHA (>1500 mg/day) showed a statistically significant increase in AF risk with a pooled odds ratio (OR) of 1.48 (95% CI, 1.21-1.81) and an absolute risk difference of 0.8% (0.40-1.1%). None of the other three groups showed statistically significant levels of AF risk (ORs 1.07 (high risk, low dose), 1.06 (low risk, low dose) and 0.95 (low risk, high dose). ConclusionThis meta-analysis suggests that treatment with EPA/DHA is most likely to increase risk for AF in patients at high-risk for CVD who are treated with high doses of EPA/DHA. The risk for AF should be balanced against the benefits of EPA/DHA in making treatment decisions.

5
Estimating the Effects of Nordic Diets on the Risk of Major Adverse Liver Outcomes: a Target Trial Emulation across Two Cohorts in Sweden

Friden, M.; MacDonald, C. J.; Hagstrom, H.; Akesson, A.; Nielsen, S.; Ibsen, D. B.

2026-01-08 nutrition 10.64898/2026.01.07.26343586
Top 0.1%
144× avg
Show abstract

BackgroundRandomized trials have shown that a healthy Nordic diet (HND) improves liver steatosis, but there is limited evidence on the effects of Nordic dietary patterns on the risk of major adverse liver outcomes (MALO). We specified a hypothetical target trial protocol to estimate the effects of adhering to a HND or the Nordic Nutrition Recommendations 2023 (NNR23) on the 24-year risk of MALO in a middle-aged to elderly Swedish population. MethodsTwo pooled population-based cohorts including n=64,406 men and women (Cohort of Swedish Men (COSM) and the Swedish Mammography Cohort (SMC)) with repeated measurements on diet and confounders in 1997, 2008/2009 and 2019 were used to emulate population-adapted versions of the diets. Under the assumptions of no unmeasured confounding, selection bias or measurement error, the parametric g-formula was used to estimate 24-year risks of MALO from each hypothetical intervention. Secondary analyses included comparing the HND and NNR23 with a low-adherence group; reducing alcohol as an additional hypothetical intervention; and assessing risk of all-cause mortality. ResultsThe estimated 24-year risk of MALO in the HND was 0.53% (95% CI: 0.38, 0.73), in the NNR23 diet 0.70% (95% CI: 0.57, 0.90) and in no intervention 0.64% (95% CI: 0.56, 0.77). Estimated risk differences (RDs) of MALO for HND versus no intervention and NNR23 versus no intervention were -0.11% (95% CI: -0.27, 0.07) and 0.06% (95% CI: -0.04, 0.15), respectively. Compared to NNR23, the estimated RD for the HND was -0.17% (95% CI: -0.38, 0.05). Meaningful risk reductions following the HND were estimated when compared to a low-adherence diet group (-1.50% (95% CI: -9.53, -0.05)), when including reducing alcohol, and for all-cause mortality (-2.67% (95% CI: -3.51, -1.85) versus no intervention; -1.68% (95% CI: - 2.75, -0.62) versus NNR23)). ConclusionWe estimated no clear risk reductions from a population-adapted HND or a NNR23 diet on the 24-year risk of MALO when compared to each other or no intervention. However, when either compared to a low-adherence group or when including reducing alcohol as a hypothetical intervention or when specifying all-cause mortality as the outcome, we estimated meaningful risk differences following the HND.

6
Nutritional availability and carbon footprints of vegetarian and vegan diets: a cross-sectional analysis of dietary data for UK children

Coffey, A.; Lillywhite, R.; Oyebode, O.

2026-01-30 nutrition 10.64898/2026.01.28.26345075
Top 0.1%
140× avg
Show abstract

As plant-based (PB) diets become more common among UK children, understanding their nutritional adequacy and environmental impact is vital. This study assessed nutrient intake and dietary greenhouse gas emissions among children following omnivorous, vegetarian, and vegan diets. A cross-sectional analysis was conducted using three-day weighed food diaries from 39 UK children aged 2-12 years (omnivore n=15; and PB: vegetarian n=11; vegan n=13). Nutrients were analysed with and without supplementation using Nutritics software. GHGEs were calculated at the ingredient level (kgCO2e/day) and grouped by Eatwell Guide food categories. No dietary group met all nutrient reference values. Omnivores exceeded recommended intakes for saturated fat and free sugars while failing to meet the recommended intake for fibre, whereas PB children had intakes of these nutrients in the healthy range. PB diets were adequate in protein and vitamin B12 even in the absence of supplementation. Vegan children also met iron requirements from diet alone, whereas omnivore and vegetarian children did not meet iron targets without supplementation. Vitamin D intake was insufficient across all groups when supplements were excluded, with only vegan children achieving recommended levels through supplementation. Zinc requirements were met only by vegetarian children with the aid of supplements and were not met by vegan or omnivore children with or without supplementation. Iodine intake remained inadequate in vegan children even with supplementation. Mean daily GHGEs differed significantly between diet groups (p < 0.001): omnivores having the highest emissions, while vegans had the lowest emissions: 46% lower than omnivores, and 20% lower than vegetarians. Well-planned PB diets can meet most nutrient needs in UK children when supported by fortified foods and supplements, while substantially reducing dietary GHGEs compared with omnivorous diets. Shifting away from animal protein and dairy provides the greatest opportunity for improving both nutritional quality and environmental sustainability.

7
Short-Chain Oat Fiber Improves Gastrointestinal Tolerance and Regulates Glucose Metabolism: A Two-Week Open-Label Study in Healthy Adults

Marcobal, A. M.; Ng, K. M.; Drexler, R. A.; McConnell, B. R.; Amicucci, M. J.

2026-01-23 nutrition 10.64898/2026.01.21.26343795
Top 0.1%
132× avg
Show abstract

IntroductionFiber intake is the most common nutritional inadequacy in the Western diet, with most adults consuming less than half of the recommended intake with only 5% of adults meeting the RDI. A novel, short-chain beta-glucan derived from oats (scOat Fiber), with improved solubility, low viscosity and enhanced palatability, compared to conventional oat fibers, was investigated for its benefits as a source of fiber supplementation. MethodsA 14-day pilot study evaluated the gastrointestinal tolerance and functional benefits of scOat Fiber in 63 healthy adults randomized to receive 5, 10 or 20 g daily doses. The primary outcome, gastrointestinal tolerability, was assessed using the Gastrointestinal Symptom Rating Scale (GSRS). Secondary outcome included glycemic response during rice challenges, measured via continuous glucose monitoring (CGM). CGM was also used to explore overall glucose dynamics. Additional exploratory outcomes (mood, energy, appetite and sleep) were assessed via validated questionnaires. ResultsscOat Fiber was exceptionally well tolerated across all doses, with no increase in GSRS scores, which remained in the low to mild range. Significant reductions in total GSRS scores were observed, with benefits evident after just one week at 5 g/day and maintained over time at both 5 and 10 g/day groups. Evaluation of GSRS sub-categories revealed that the 5 g/day and 10 g/day dose groups experienced significant reductions in abdominal pain symptoms. Both dose groups also demonstrated a significant decrease in constipation at the end of the study. Postprandial glucose responses were attenuated following product use, with a significant reduction in peak glucose during rice challenges after 2 weeks in the 20 g/day group. Both 10 and 20 g/day doses were associated with significant improvement in glycemic metrics during the study, including reductions in glucose mean, all glycemic excursions, and an increase in time-in-range. Exploratory analysis suggested that scOat Fiber may improve mental health and concentration in participants with elevated baseline symptoms. ConclusionsDespite the lack of a placebo control and short duration, the dose-dependent nature of the results supports the potential of scOat Fiber as a well-tolerated and functional source of fiber with benefits including glycemic control, digestive health and mental health (NCT06739941)

8
How Does Early, Midday, and Late Time-Restricted Eating Impact Anthropometry and Cardiometabolic Health? A Systematic Review and Network Meta-Analysis of RCTs.

Hamsho, M.; Shkorfu, W.; Terzi, M.; Ranneh, Y.; A Varady, K.; Fadel, A.

2026-01-30 nutrition 10.64898/2026.01.29.26345140
Top 0.2%
127× avg
Show abstract

BackgroundTime-restricted eating (TRE) has gained popularity for weight loss and metabolic health. While some evidence suggests greater benefits when TRE aligns with circadian rhythms--characterized by early daytime eating and avoidance of nighttime intake, often referred to as early TRE (eTRE), other studies report no meaningful differences between eTRE, other TRE approaches with or without exercise, or calorie restriction (CR), and robust comparative evidence remains limited. AimTherefore, the aim of this network meta-analysis (NMA) is to evaluate the physiological effects of eTRE, midday time-restricted eating (mTRE), late time-restricted eating (lTRE), with and without exercise, CR, and control (without prescribed energy or fasting windows) on anthropometric measures and cardiometabolic markers in adults with cardiometabolic risk factors. MethodsA comprehensive literature search was conducted in four major databases (PubMed, Web of Science, Scopus, and Embase) up to April 24, 2025. A Bayesian NMA was performed, using a control group as the reference comparator across interventions. Treatment effects were expressed as mean differences with 95% confidence intervals. The relative ranking of the included arms on the outcomes was assessed using surface under the cumulative ranking curve, values derived from the NMA, where higher values reflect a higher probability of superior effectiveness. Resultsa total of 40 trials comprising 3259 subjects were included in the analysis. There were significant reductions in most anthropometric measures in all intervention groups compared to control group. Whereas eTRE and eTRE + exercise (EX) significantly improved glucoregulatory outcomes compared to control, eTRE + EX showed superior results over other interventions. ConclusionWhile our results did not detect statistically significant differences between TRE patterns and CR, the consistent SUCRA rankings in favor of eTRE (particularly with exercise) suggest that meal timing may play an important role in metabolic regulation.

9
Adhering to dietary guidelines does not yield flavanol intake levels associated with beneficial cardiovascular effects

Ottaviani, J. I.; Erdman, J. W.; Steinberg, F. M.; Manson, J. E.; Sesso, H. D.; Schroeter, H.; Kuhnle, G. G. C.

2026-02-26 nutrition 10.64898/2026.02.24.26346949
Top 0.2%
112× avg
Show abstract

Outcomes from the COSMOS trial have reinforced the notion of flavanols as important plant-derived bioactives contributing to cardiovascular health. As discussions continue on whether specific dietary reference values for flavanols are warranted, it is possible that existing dietary guidelines emphasizing fruits and vegetables already yield sufficient flavanol intake levels. If this were the case, developing flavanol specific dietary reference values might be unnecessary. This study therefore aimed at assessing whether adherence to dietary recommendations for fruit and vegetable intake and overall diet quality achieves flavanol intake levels of 500 mg/day, the amount proven to mediate cardiovascular benefits in the COSMOS trial. Flavanol intake was objectively evaluated using two validated and complementary biomarkers, 5-(3{square},4{square}-dihydroxyphenyl)-{gamma}-valerolactone metabolites (gVLMB) and structurally related (-)-epicatechin metabolites (SREMB), in two geographically distinct studies: COSMOS (US; n=6,509) and EPIC-Norfolk (UK; n=24,154). The results showed that higher fruit and vegetable intakes and diet quality (assessed via the alternative healthy eating index-aHEI) were associated with increased flavanol intake in COSMOS. Nevertheless, fewer than 25% of participants meeting dietary guidelines achieved an estimated flavanol intake of [&ge;]500 mg/day. Similar findings were observed in EPIC-Norfolk as well as through flavanol intake simulations considering fruits and vegetables commonly consumed in the US diet. In conclusion, adherence to existing dietary guidelines does not yield flavanol intake levels comparable to those shown to provide cardiovascular benefits in COSMOS. Thus, specific dietary reference values for flavanols may still be necessary if aiming to increase the intake of these dietary compounds. Graphical abstract O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=101 SRC="FIGDIR/small/26346949v1_ufig1.gif" ALT="Figure 1"> View larger version (39K): org.highwire.dtl.DTLVardef@24faeaorg.highwire.dtl.DTLVardef@1d52a29org.highwire.dtl.DTLVardef@1c2ff33org.highwire.dtl.DTLVardef@100a384_HPS_FORMAT_FIGEXP M_FIG C_FIG

10
Maternal dietary diversity and its correlates in a semi-urban municipality of Nepal: A cross-sectional study

Rimal, R.; Rimal, A.; Pradhan, P. U.

2025-12-13 nutrition 10.64898/2025.12.10.25342030
Top 0.2%
107× avg
Show abstract

Maternal dietary diversity is vital for the health of both mothers and children during lactation, yet it is often compromised in low- and middle-income countries. This cross-sectional study among 251 lactating mothers in Tarakeswor Municipality, Nepal, assessed dietary diversity using a 24-hour dietary recall and the Minimum Dietary Diversity for Women (MDD-W) indicator. Overall, 68.1% of mothers achieved the minimum dietary diversity ([&ge;]5 of 10 food groups), with a mean score of 5.03 {+/-} 1.25. In multivariable analysis, higher odds of meeting MDD were observed among mothers with secondary or higher education (aOR = 7.5; 95% CI: 3.8-15.0), employment (aOR = 2.9; 95% CI: 1.4-5.8), joint or extended family structure (aOR = 3.7; 95% CI: 1.9-7.0), the highest wealth quintile (aOR = 4.2; 95% CI: 1.9-9.1), food-secure households (aOR = 4.5; 95% CI: 2.3-7.9), adequate nutrition knowledge (aOR = 5.2; 95% CI: 2.7-9.8), [&ge;]4 antenatal care visits (aOR = 1.9; 95% CI: 1.0-3.4), and higher empowerment (aOR = 3.9; 95% CI: 1.9-7.8). These findings highlight substantial socioeconomic disparities in maternal dietary diversity and underscore the need for integrated, equity-focused nutrition interventions in rapidly urbanizing settings in low- and middle-income countries.

11
Dietary patterns and nutritional composition of packed lunches in early years education settings

Deb, S.; Wisbey, M.; Hawkins, M.; Randall, S.; Harris, M.; Aaronricks, K.

2026-03-04 nutrition 10.64898/2026.03.03.26347536
Top 0.2%
103× avg
Show abstract

BackgroundPacked lunches are a common feature of early childhood food provision, yet evidence describing their nutritional composition in early years settings remains limited. Understanding the foods provided during this developmental period is important, given the potential influence of early dietary exposures on later health. AimTo characterise the composition, nutritional quality, cost, and dietary patterns of packed lunches brought from home in Early Childhood Education and Care settings, and to examine variation by child age and area-level deprivation. MethodsA cross-sectional analysis was conducted using a remote food photography method to assess packed lunches provided for children aged 1-4 years attending early years settings across Essex, UK. Food items were categorised into predefined groups, and nutrient composition was estimated. Area-level deprivation was determined using the English Index of Multiple Deprivation (2019). Non-parametric tests assessed between-group differences. Principal components analysis (PCA) was used to identify patterns of co-occurring foods. ResultsA total of 389 packed lunches were analysed. Starchy foods (82%), fruit (81%), dairy or alternatives (72%), and savoury snacks (74%) were commonly provided, while vegetables were less frequent and fish was rarely observed (1.5%). Overall, 97.7% of lunches contained at least one ultra-processed food (UPF), with a median of three UPF items per lunch and 74% of total energy derived from UPFs. Median energy provision was 400 kcal (IQR 309-518). Nutrient composition was broadly similar across deprivation groups, although cake and biscuit counts and UPF item counts were modestly higher in more deprived areas. The median estimated lunch cost was {pound}1.79 and did not differ by deprivation. ConclusionsPacked lunches in early years settings frequently contained ultra-processed foods and showed considerable variability in nutritional quality. Socioeconomic differences were limited, suggesting that contemporary packed lunch practices may reflect influences operating across population groups. Further research across diverse regions is warranted to better understand the provision of packed lunches and their implications for early dietary exposure.

12
Rice Diet Improves Survival, Blood Pressure, and Eye Changes in 544 Patients with Malignant-Hypertension

Neelon, F. A.; Klemmer, P. J.; La, J. o.; Sanoff, S.; Li, Y.-J.; Kuo, A.; Tyson, C.; Bohannon, A.; McDowell, W. K.; Luft, F. C.; Lin, P.-H.

2026-01-12 nutrition 10.64898/2026.01.09.26343821
Top 0.3%
98× avg
Show abstract

BackgroundThe sodium-restricted rice diet (RD) was once the only effective treatment for malignant hypertension (MH); however, a modern, comprehensive data analysis is lacking. We determined patient survival and ocular improvements in 544 MH patients treated between 1942-1982. MethodsAt entry, systolic blood pressure (SBP) was [&ge;]170 mmHg and retinal hemorrhage (n = 312), hemorrhage with papilledema (n= 211) or papilledema alone (n = 21) were present. Dates of death were available for 454 patients; ocular data (at baseline and again before day 365) for 342 patients with hemorrhage and 143 with papilledema. We used actuarial analysis to determine survival and resolution of ocular findings. We used Cox proportional hazards to calculate mortality hazard ratio (HR), and period life tables to estimate loss of longevity. ResultsMedian initial SBP of 213.3 mmHg fell to 178.4 during year 1, and to [~]143 after 9 years. RD patients survived longer than untreated patients: 1890 vs 540 days for patients with hemorrhage alone; 510 vs 180 days with both hemorrhage and papilledema. Few patients reached their expected longevity; median loss of potential life was 15.4 years. Compared to patients whose SBP fell <15 mmHg by 4 weeks, those with a fall [&ge;] 37 mmHg had HR for mortality of 0.32. Retinal hemorrhages cleared in 260/342 patients; papilledema, in 133/143. ConclusionWith RD treatment blood pressure decreased, and ocular abnormalities largely resolved. Survival improved, but predicted longevity was not achieved. The RD helped MH and could still provide a useful adjunct to pharmacologic therapy.

13
Weight management needs in under-resourced communities elicited using storyboarding and a realist lens: A qualitative study

Brown, T. J.; Mahoney, K.; Naughton, F.; Tham, N. A. Q.; Khadjesari, Z.

2026-02-17 nutrition 10.64898/2026.02.13.26346241
Top 0.3%
87× avg
Show abstract

BackgroundOverweight and obesity are causing growing public health, economic and clinical burden, particularly within under-resourced communities. There is an urgent need to develop an in-depth understanding of experiences of weight management, and preferences for support within under-resourced communities, with a view to developing more effective weight management interventions. MethodsFocus groups were run in under-resourced communities using storyboarding; a method to facilitate inclusive communication (n=37). Thematic analysis was applied to textual and visual data, and a realist lens applied to provide in-depth insight into weight management experiences and needs. We believe this is the first study to use this combined methodology to explore weight management experiences and needs. ResultsCombining storyboarding with a realist lens, generated four themes. Living circumstances indicated that mental health, individual needs, and cost of weight management services were key contextual factors. Mechanisms of weight management identified emotional eating and portion control to be central to individual weight management. Yo-yo dieting centred on participants experiences of weight regain after attempting weight loss. Weight management intervention needs indicated psychological support was perceived as severely lacking, and the only route to attain sustained weight management. Offering both in-person and online support for weight management was considered important to reach more people. ConclusionMoving weight management support from short- to long-term and incorporating more robust psychological support would better serve the needs of people living in under-resourced communities who are overweight or obese. Ideally interventions should be multicomponent and tailored to individual needs and circumstances.

14
Cross-sectional and longitudinal associations between dietary intake and depressive symptoms in young South African adults: The African-PREDICT study

Jansen van Vuren, E.; O'Neil, A.; Ashtree, D. N.; Lane, M. M.; Orr, R.; Pieters, M.; Van Zyl, T.

2026-02-15 nutrition 10.64898/2026.02.13.26346223
Top 0.4%
87× avg
Show abstract

IntroductionDepression is highly prevalent among young adults worldwide. While research links health behaviours, such as dietary intake, to depression, few studies have examined these associations among young adults in low- and middle-income countries, including South Africa. This study investigated whether dietary intake was associated with an increased risk of depression in a cohort of young South African adults, aged 20-30 years, as part of the Global burden of disease Lifestyle And mental Disorder (GLAD) project. MethodsThis five-year prospective cohort study was conducted in the North West Province of South Africa in accordance with the GLAD project protocol (DERR1-10.2196/65576). Dietary exposures were evaluated using three non-consecutive 24-hour dietary recalls, measuring daily intake of various food groups and nutrients as defined by the Global Burden of Disease study. Depression outcomes were assessed at baseline (N=1039) and follow-up (N=551) using the Patient Health Questionnaire (PHQ-9, cut-off [&ge;]10). Logistic and Poisson regression analyses were performed, with results presented as odds ratios (OR) and relative risk ratios (RR), respectively. Four models were run: unadjusted, sociodemographic-adjusted, total energy (TE) intake-adjusted and fully adjusted (including sociodemographic information and TE intake). For longitudinal analyses of incident depression, baseline depression cases were additionally excluded (n=403). ResultsParticipants (average age 24.55 years) had a balanced distribution of sex (51.4% female) and race (48.6% Black), and a 29.45% baseline prevalence of depression. Higher milk intake was associated with a lower risk of incident depression (RR=0.94, 95% CI 0.91-0.98) in the TE-adjusted longitudinal model. Cross-sectionally, higher sugar-sweetened beverage consumption associated with higher odds of depression, while higher calcium intake (OR=0.48, 95% CI 0.31; 0.76) and vegetable consumption (OR=0.74, 95% CI 0.61, 0.91) were associated with lower odds of depression after TE intake adjustment. Higher fibre intake was associated with lower odds of depression in the unadjusted model. ConclusionHigher daily milk intake was associated with a lower risk of depression, while higher calcium, vegetable, and fibre intake were associated with a lower prevalence of depression in young adults. These findings suggest that prevention strategies for common mental disorders could include dietary approaches within mental health care.

15
Enhanced Recovery After Surgery (ERAS) Increases Long-Term Survival Rate after Surgery in Colorectal Cancer Patients: A Systematic Review and Meta-Analysis

Yang, K.; Liu, X.; Cui, J.; Liu, J.; Wu, Y.; Liu, Z.; Zhang, J.; Ji, H.; Chen, Q.

2026-03-06 nutrition 10.64898/2026.03.05.26347672
Top 0.4%
85× avg
Show abstract

Abstract Background: Enhanced Recovery After Surgery (ERAS) optimizes perioperative management for colorectal cancer (CRC), improving short-term outcomes, but its impact on long-term outcomes remains inconclusive, supporting the need for this meta-analysis. This study evaluates the effect of perioperative ERAS (therapy-focused) on 1-, 2-, 3-, and 5-year postoperative survival in patients with CRC. Methods: We conducted a systematic review and meta-analysis following a pre-registered protocol in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, Web of Science, Embase, Medline Ovid, and Cochrane Library Wiley were searched up to December 31, 2025, for clinical studies reporting long-term postoperative survival outcomes of patients with CRC undergoing ERAS implementation. Of 1,063 retrieved reports, 10 studies (5,876 patients) were included in Kaplan-Meier-based meta-analyses and eight studies (5,556 patients) in aggregated data meta-analyses. Data extraction was performed independently by two reviewers, with study quality and risk of bias assessed using the Newcastle-Ottawa Scale (NOS) and RevMan software. Effect sizes were pooled using fixed-or random-effects models according to heterogeneity, with cross-validation and subgroup analyses examining the influence of tumor stage and ERAS adherence. The pre-specified primary outcome was postoperative overall survival (OS) [&ge;]12 months, and the secondary outcome was disease-free survival (DFS). Results: ERAS significantly improved OS at 1 year (93.2%, 95% CI: 92.3-94.2 vs. 90.2%, 95% CI: 89.1-91.2), 2 years (86.7% vs. 81.3%), 3 years (81.1% vs. 72.4%), 5 years (70.9% vs. 60.6%) (all P<0.01). The pooled HR for mortality was 0.72 (95% CI: 0.63-0.83, P<0.01), indicating a 28% reduction in long-term mortality. Stage I-II tumors and ERAS adherence [&ge;]70% conferred the greatest benefits. DFS did not show a statistically significant improvement (HR=0.90, 95% CI: 0.68-1.19, P=0.45). Included studies were of moderate to high quality (NOS score 6-9). Conclusions: Perioperative ERAS significantly improves 1- to 5-year OS and reduces long-term mortality in patients with CRC, with the greatest benefits in early-stage disease and high adherence. These findings support ERAS as a critical component of comprehensive CRC care.

16
Validity of food portion size photographs among women in Nairobi, Kenya

Haji, I. A.; Walsh, H. M.; Fogelholm, M.; Kanerva, N.

2025-12-29 nutrition 10.64898/2025.12.28.25343121
Top 0.4%
84× avg
Show abstract

BackgroundValidated food portion size photographs can increase accuracy of estimatingportion sizes during dietary surveys. Our objective was to assess the validity of food portion size photographs in estimating portion sizes to be used in 24-hour dietary recall food consumption study. MethodsWe recruited two hundred and six women of reproductive age (13-45 years) residing in Roysambu sub-county in the northern parts of Nairobi City, Kenya. Eleven foods from the Photographic Food Atlas for Kenyan Adolescents (9-14 years) were examined. Participants were served pre-weighed portions. After eating, each participant was asked to estimate the amount of food they consumed, using the Food Atlas. Validity was assessed by calculating percentage of estimates within and outside of {+/-}10% of consumed portion size, the mean percent difference between estimated and consumed portions, Spearmans correlation coefficients, and Pearsons chi-square test. ResultsThe proportion of participants with estimates within {+/-} 10% of the consumed portion size ranged between 15-65%. Mean differences between the consumed and estimated portion sizes varied -45% for stewed beans to +60% for watermelon. Generally, small portions were overestimated while large portions were underestimated. Correlation coefficients ranged from 0.12 to 0.77 and all the coefficients were statistically significant except for watermelon (p=0.22). Accuracy of estimations was not associated with participants age or educational level. ConclusionsThe validity of the tested food proportion size photographs was adequate for quantifications of most food items. However, the studys findings also indicated that further improvement is needed before wider use in Kenya.

17
Underhydration is prevalent across education levels and associated with low intake of water but not sugar-sweetened beverages: A cross-sectional study from the UK

Claassen, M. A.; Papies, E. K.

2026-01-30 nutrition 10.64898/2026.01.28.26344904
Top 0.4%
81× avg
Show abstract

PurposeAdequate hydration is vital for health, yet many people do not meet fluid recommendations. This study aimed to characterise the role of water and sugar-sweetened beverages in hydration across different levels of socioeconomic status (SES) in the UK. MethodsIn a pre-registered cross-sectional study, participants (N = 1,112) recalled beverages consumed on the previous day and reported urine colour as an indicator of their hydration status. We analysed water intake (H1), sugar-sweetened beverage (SSB) intake (H2), and SES (education; H3) as predictors of hydration status using stepwise binomial logistic regression adjusted for health, demographic, and lifestyle covariates. ResultsForty percent of participants were classified as underhydrated. Higher water intake was associated with a greater likelihood of adequate hydration: Drinking one extra glass of water per day (250 ml) increased the odds of being adequately hydrated by about 16%. However, SSB intake was not associated with hydration unless intake from other drink sources was held constant. Having a higher versus lower level of education was not significantly associated with hydration status, although finer-grained and income-based analyses suggested modest socioeconomic differences. ConclusionWater intake--rather than SSB intake--is the primary correlate of adequate hydration in this UK sample. Public health initiatives should emphasise the importance of water for hydration, invest in ways to make water more appealing, and promote the use of urine colour as a marker of hydration status.

18
Effects of Human Lactoferrin (effera(R)) at Two Doses versus Bovine Lactoferrin on the Adult Gut Microbiome and Fecal Short-Chain Fatty Acids: A Randomized, Double-Blind Trial

Peterson, R. D.; Made, J. v. d.; Kaplan, N.; Donovan, S. M.; Wang, M.; Dilger, R. N.; Clark, A. J.

2026-01-02 nutrition 10.64898/2025.12.31.25343278
Top 0.4%
78× avg
Show abstract

Background/ObjectivesHuman lactoferrin (hLF) is glycoprotein of commercial interest as a food ingredient for gut health. Here, we report an exploratory analysis evaluating the effects of Helaina hLF (effera(R)), produced by Komagataella phaffii, on the adult gut microbiome and fecal metabolites in comparison to bovine LF (bLF). MethodsIn a randomized, double-blind, parallel-arm, controlled trial, 66 healthy adults received either high-dose (HD) effera(R) (3.4 g/day), low-dose (LD) effera(R) (0.34 g/day), or bLF (3.4 g/day) supplementation for 28 days. Fecal samples were collected at baseline (Day 0), Day 28, Day 56, and Day 84 and analyzed for microbial diversity, taxonomic shifts, and volatile fatty acids (VFA). ResultsAlpha-diversity remained stable across all groups. Beta-diversity showed no main effect of treatment; however, bLF was associated with significant visit-related shifts, as assessed by weighted UniFrac. At the phylum level, significant changes associated with effera(R) were observed, including decreases in Bacillota (LD) and Verrucomicrobiota (HD), and notable genera increases in Lachnospira, Paraprevotella, and Faecalibacterium (HD), while bLF was associated with an increase in Roseburia. Both effera(R) and bLF were associated with decreases in Blautia and Dorea. VFA analysis revealed that bLF increased absolute total short-chain fatty acids (SCFAs) and branched-chain fatty acids (BCFAs) concentrations, while both effera(R) groups produced proportional changes in SCFAs, individual BCFAs, and acetate. ConclusionsIn healthy adults, effera(R) supplementation promoted a proportional increase in acetate and supported potentially beneficial taxa while maintaining microbial diversity, without disrupting community structure. (clinicaltrials.gov: NCT06012669).

19
Maternal Opioids Downregulate Adiponectin Receptor Signaling and Alter Growth in Offspring: Pilot Study

Yen, E.; Singh, K.; Chow, M.; Carasi-Schwartz, F.; Cordova, M.; Kaneko-Tarui, T.; Brew, E.; Mahmoud, T.; Reddy, P.; Rodday, A. M.; Maron, J.; Davis, J. M.; O'Tierney-Ginn, P.

2026-01-11 nutrition 10.64898/2026.01.08.26343734
Top 0.5%
75× avg
Show abstract

Opioid use disorder (OUD) has been linked to cardiometabolic diseases in adults through reductions in adiponectin--an adipocytokine with insulin-sensitizing effects. Opioid use during pregnancy dysregulates neonatal growth and may predispose to adult-onset diseases, but the impact of maternal OUD on neonatal adiponectin has not been studied. We hypothesize that maternal OUD also reduces adiponectin level in offspring (primary outcome) and alters growth (secondary outcome). To test our hypothesis, we conducted a prospective, observational pilot study and compared the expression of salivary adiponectin receptor 1/ADIPOR1 and anthropometric and body composition (fat and fat-free mass) measurements between opioid-exposed and age-matched non-exposed neonates born at [&ge;]34 weeks gestation. Data were stratified by exposure and sex using a Students t-test. Significance was set at p<0.05. A total of 67 neonates (35 opioid-exposed, 32 non-exposed neonates) were enrolled. Compared to healthy, non-exposed neonates, the expression of ADIPOR1 was reduced in opioid-exposed neonates (0.27-fold, p<0.01), with the lowest expression in those requiring pharmacotherapy (0.048-fold, p<0.001). Despite the smaller anthropometric measurements in the exposed than non-exposed neonates (2915{+/-}625 grams vs. 3209{+/-}345 grams, p=0.02), opioid-exposed neonates had comparable adiposity to non-exposed neonates (8.60{+/-}4.52% vs. 8.53{+/-}4.00%, p=0.95). Less breast milk was used in the exposed than non-exposed group (25.7% vs. 71.9%, p<0.01). Maternal OUD may be associated with aberrant growth and excess adiposity in offspring through its effect on adiponectin signaling, predisposing these neonates to cardiometabolic risks.

20
Manitoba Interdisciplinary Lactation Center (MILC): A bench-to-population human milk biorepository and research platform protocol

Lotoski, L. C.; Ames, S. R.; Johnston, A.; Fehr, K.; Azad, M. B.

2026-03-02 nutrition 10.64898/2026.02.27.26347256
Top 0.5%
72× avg
Show abstract

IntroductionBreastfeeding supports multiple aspects of child development and maternal health. However, research findings are often inconsistent due to methodological limitations, including inadequate control for sociodemographic factors, variation in feeding practices, health conditions across the life course, and heterogeneity in human milk (HM) composition. The Manitoba Interdisciplinary Lactation Center (MILC) is a globally accessible, bench-to-population research platform that enables integrated study of HM composition, maternal-child health, and the societal and structural determinants of lactation and HM feeding. Methods and AnalysisMILC combines cross-sectional questionnaire data and HM sample collection with longitudinal administrative data derived from provincial government databases. MILC recruits lactating parents currently feeding their HM to at least one child. Participants follow a standardized full breast expression protocol. All collected HM samples have their macronutrient profiles characterized and are bio-banked for unspecified future research. Questionnaires capture child and parent demographic, dietary and health characteristics, and detailed HM feeding practices. Administrative data include over 90 databases spanning health and social services utilization and education; these de-identified records are housed at the Manitoba Population Research Data Repository and linked with MILC study samples and data. MILC questionnaires and HM collection protocols can be customized to accommodate specific research projects (e.g. additional surveys or questions; snap freezing, addition of preservatives, cell or extra-cellular vesicle isolation, etc.). MILC began recruiting participants in October 2024 and is currently ongoing. Researchers may access MILC data and biospecimens subject to appropriate ethical approvals and data-sharing agreements. Ethics and disseminationMILC is approved by the University of Manitoba Human Research Ethics Board and the Provincial Health Research Privacy Committee. Participation is voluntary and based on informed consent. Research updates and findings will be disseminated via peer-reviewed journal publications, academic and clinical conferences, social media, public knowledge sharing events (e.g. information booths and virtual "Ask Me Anything" sessions), the MILC website (https://www.milcresearch.com) and the MILC Club (monthly meetings among researchers, trainees, healthcare providers, and community partners). MILC members also engage with agenda-setting organizations (e.g. Breastfeeding Committee for Canada, North American Board for Breastfeeding and Lactation Medicine) to accelerate translation of research knowledge into policy and practice. STRENGTHS AND LIMITATIONS OF THIS STUDYO_LIMILC combines low-burden cross-sectional human milk samples and questionnaire data with lifelong/longitudinal administrative data. C_LIO_LIParent-child dyad human milk feeding practices and history are captured in a high level of detail, filling a gap frequently experienced in human milk and lactation research. C_LIO_LIOur questionnaires have been partially harmonized with other biorepositories and/or utilize valid and reliable measurement scales. C_LIO_LIThe initial MILC study pilot population lacks diversity; this will be intentionally addressed going forward. C_LIO_LIThe cost to maintain a long-term biorepository facility is high. C_LI