The American journal of clinical nutrition

Am J Clin Nutr · ISSN (e) 1938-3207 · 17 papers in corpus
meta-analysis 2025
doi:10.1016/j.ajcnut.2025.07.027 ·PMID:40754214

BACKGROUND: Breastfeeding (BF) has been reported to be beneficial for both mothers and their offspring, but the evidence for these associations has not been systematically evaluated. OBJECTIVES: This umbrella review aims to assess the cred…

other 2025
doi:10.1016/j.ajcnut.2025.02.004 ·PMID:39921094

BACKGROUND: Prognosis after a diagnosis of invasive epithelial ovarian cancer is poor. Some studies have suggested modifiable behaviors, like diet, are associated with survival but the evidence is inconsistent. OBJECTIVES: This study aims …

meta-analysis 2024
doi:10.1016/j.ajcnut.2024.08.023 ·PMID:39209153

BACKGROUND: Energy requirement assessment is a cornerstone for nutrition practice. The extent to which total energy expenditure (TEE; indicator of energy requirements) has been measured in adults with chronic diseases has not been explored.…

nonrandomized-trial 2022
doi:10.1093/ajcn/nqab435 ·PMID:35030239

BACKGROUND: Caffeine is the most frequently used psychoactive substance in the United States and >90% of reproductive-age women report some amount of intake daily. Despite biological plausibility, previous studies on caffeine and fecundabil…

observational 2022
doi:10.1093/ajcn/nqab344 ·PMID:34626169

BACKGROUND: Modest associations have been reported between specific food groups or nutrients and fecundability [measured by time to pregnancy (TTP)]. Examining overall diets provides a more holistic approach towards understanding their asso…

rct 2020
doi:10.1093/ajcn/nqaa096 ·PMID:32453393

BACKGROUND: Adolescents with endometriosis are a particularly underserved population who struggle with chronic pain. Despite widespread use, there are no published trials examining the individual effects of vitamin D and omega-3 (n-3) fatty…

observational 2018
doi:10.1093/ajcn/nqy185 ·PMID:30475972

BACKGROUND: Some dietary factors have been linked to outcomes of infertility treatment with assisted reproductive technology (ART), but the role of intake of meats and other protein-rich foods remains unclear. OBJECTIVE: The aim of this ma…

observational 2017
doi:10.3945/ajcn.116.138404 ·PMID:27903519

BACKGROUND: Animal studies have shown that a high intake of galactose, a breakdown product of lactose, increases ovarian toxicity. Few epidemiologic studies, to our knowledge, have examined the association between dairy intake and fertility…

observational 2017
doi:10.3945/ajcn.116.145607 ·PMID:28490509

Background: Early menopause, defined as the cessation of ovarian function before the age of 45 y, affects ∼10% of women and is associated with higher risk of cardiovascular disease, osteoporosis, and other conditions. Few modifiable risk fa…

observational 2016
doi:10.3945/ajcn.115.127027 ·PMID:27385613

BACKGROUND: Clinically significant premenstrual syndrome (PMS) affects 15-20% of premenopausal women, substantially reducing quality of life. Women with PMS often are counseled to minimize caffeine intake, although only limited evidence sup…

observational 2016
doi:10.3945/ajcn.115.119321 ·PMID:26843151

BACKGROUND: Emerging evidence suggests potential links between some dietary fatty acids and improved fertility, because specific fatty acids may affect prostaglandin synthesis and steroidogenesis. OBJECTIVE: The objective of this explorato…

observational 2015
doi:10.3945/ajcn.115.112185 ·PMID:26354529

BACKGROUND: Preconceptional folate and vitamin B-12 have been linked to beneficial reproductive outcomes in both natural pregnancies and those after assisted reproductive technology (ART) treatment. OBJECTIVE: The objective of the study wa…

observational 2014
doi:10.3945/ajcn.113.073635 ·PMID:24598152

BACKGROUND: Uterine leiomyomata (UL) are the primary indication for hysterectomy and are 2-3 times more common in black than white women. High dietary fat intake has been associated with increased endogenous concentrations of estradiol, a s…

observational 2012
doi:10.3945/ajcn.111.021287 ·PMID:22237060

BACKGROUND: Caffeinated beverages are widely consumed among women of reproductive age, but their association with reproductive hormones, and whether race modifies any such associations, is not well understood. OBJECTIVE: We assessed the re…

observational 2011
doi:10.3945/ajcn.110.009530 ·PMID:21346091

BACKGROUND: Thiamine, riboflavin, niacin, vitamin B-6, folate, and vitamin B-12 are required to synthesize neurotransmitters that are potentially involved in the pathophysiology of premenstrual syndrome (PMS). OBJECTIVE: The objective was …

rct 2009
doi:10.3945/ajcn.2009.27981 ·PMID:19710188

BACKGROUND: The nonsteroidal estrogen equol occurs as diastereoisomers, S-(-)equol and R-(+)equol, both of which have significant biological actions. S-(-)equol, the naturally occurring enantiomer produced by 20-30% of adults consuming soy …

observational 2006
doi:10.1093/ajcn/84.3.587 ·PMID:16960173

BACKGROUND: Uterine fibroids are hormonally responsive; estradiol and progesterone stimulate their growth, and gonadotrophin-releasing hormone agonists shrink them. Phytoestrogens, including isoflavones and lignans, can act as weak estrogen…