The American Journal of Clinical Nutrition
Top medRxiv preprints most likely to be published in this journal, ranked by match strength.
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BackgroundSevere acute malnutrition (SAM) among children under 5 years of age is generally treated in outpatient settings providing caregivers with weekly ready-to-use therapeutic food (RUTF) rations to be administered at home. Recent updates to global treatment guidelines suggest that RUTF dose can be reduced once children progress to moderate stage (MAM). No evidence exists on the optimal timing of the dosage reduction or on ideal visit frequency. ObjectivesWe aimed to test the impact of 1) i...
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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 to...
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BackgroundMultiple micronutrient deficiencies, including zinc deficiency, remain highly prevalent among pregnant women in many low- and middle-income countries and are associated with a multitude of adverse outcomes. ObjectiveThe objectives of this analysis were to assess the impacts of prenatal multiple micronutrient supplements (MMS) compared to iron and folic acid (IFA) supplements on maternal zinc status among pregnant women at 36 weeks gestation and assess associations with birth outcomes....
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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 ...
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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, a...
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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 supplementa...
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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, Bifidobacte...
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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 aim...
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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 ...
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BackgroundTranslocation of bacteria across the intestinal barrier has been postulated to contribute to mortality among severely malnourished children. Pancreatic enzymes (PE) and bile acids (BA) have anti-bacterial properties in the small intestine, but severe malnutrition is associated with impaired exocrine pancreatic and hepatobiliary functions. We evaluated whether ancillary treatment with PE and BA improves survival in hospitalized, acutely ill, severely malnourished children. Methods and ...
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Iron deficiency (ID) in children caused by dietary deprivation can be alleviated in [~]40% cases with iron-fortified nutritional solutions. Devising more effective nutritional solutions requires a quantitative understanding of iron homeostasis, which is lacking. Here, we developed a physiologically-based mathematical model of paediatric iron homeostasis that recapitulates ID due to dietary deprivation and its alleviation using nutritional solutions. The model integrates key cellular and systemic...
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BackgroundCaloric restriction (CR) improves markers of biological aging, yet long-term effects on the human metabolome remain unclear. ObjectiveThis study examined the effects of CR (2 years) in healthy adults without obesity on circulating metabolites linked to aging and metabolic adaptations. MethodsUntargeted metabolomics was performed using fasted plasma samples collected at baseline, 12, and 24 months (BL, 12M, 24M) from CALERIE participants randomized to CR or ad libitum (AL) control. A ...
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BackgroundObservational studies have linked high adherence to the "Mediterranean-Dietary Approaches to Stop Hypertension Intervention for Neurodegenerative Delay" (MIND) diet to improved cognitive functions in older adults. The underlying peripheral and central mechanisms of this association remain poorly understood, although multiple nutrients in the MIND diet are known for their anti-inflammatory effects. Therefore, we explored the cross-sectional relation between MIND diet adherence (Dutch ve...
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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, th...
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Poor sleep is linked to consumption of sugary foods/beverages and high neural responsivity to palatable food cues. Yet, whether hedonic liking for sweet taste explains these associations remains unclear. We examined cross-sectional associations of five sleep traits (chronotype, sleep duration, insomnia frequency, snoring, daytime dozing) and a composite sleep score with sweet food liking, and total and free sugar intake in 76,734 UK Biobank participants (39-72 years, 56.3% female). Models adjust...
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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...
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IntroductionMechanistic research has shown that prior obesity induces durable transcriptomic and epigenetic reprogramming in adipose tissue that persists after weight loss and predisposes individuals to weight regain. This phenomenon, termed obesogenic memory (OM), is currently conceptualized primarily as a molecular process. We propose extending OM beyond adipose tissue biology to include interacting biological and sociocultural processes through which past exposures shape present physiological...
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Modernizing dietary surveillance is essential for addressing diet-related chronic disease, yet traditional self-report tools remain burdensome and error-prone. Edna, a mobile ecological momentary diet assessment (mEMDA) platform, was developed through a multidisciplinary, user-centered process to enable real-time, low-burden dietary reporting with image-assisted portion estimation and automated nutrient coding. In three iterative rounds of national remote testing (N = 146 U.S. adults, 19-65 year...
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The gut microbiota has been implicated in regulating body composition, insulin resistance, and energy metabolism through microbial metabolites, including short-chain fatty acids (SCFAs) and amino acids. However, evidence in adolescents, particularly regarding sex-specific differences and lifestyle such as alcohol intake, remains limited. Characterizing sex-specific metabolic signatures in adolescence may improve early identification of metabolic risk. To address this gap, we investigated associ...
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BackgroundThe introduction of mandatory calorie labelling among large food businesses (chains) in England in 2022 has been found to have little impact on consumer behaviour, but overall calories on restaurant menus have decreased slightly. This study examined menu changes post policy implementation, and the population groups likely to have been affected most. MethodsMenu data from 169 chains in Great Britain were extracted from two online food delivery platforms in June 2022 and June 2023. We s...