Dairy intake and bone health across the lifespan: a systematic review and expert narrative.

摘要: Over the past 30-years, U.S. Dietary Guidelines for Americans have included recommendations around dairy consumption, largely based on meeting calcium intake with intended purpose of osteoporosis prevention. Although products provide more bone-beneficial nutrients (e.g., calcium, magnesium, potassium, zinc, phosphorus, and protein) per unit energy than any other food group, relevance long-term bone health fracture prevention has resurged as some observational studies suggested consumption to be associated a greater risk fractures. Given this controversy, we sought synthesize evidence across lifespan. We searched PubMed, EMBASE, Web Science, Cochrane Central Register Controlled Trials databases English-language publications through June 2, 2020. Case-controlled, cross-sectional, prospective cohort or nestled case-control (or case cohort), clinical trials reporting effect mineral density, content, and/or fractures were in systematic review. Two reviewers independently performed data extractions. Data from 91 publications, including 30 RCTs, 28 cohorts, 23 cross-sectional studies, 10 assigned "D" grade "insufficient evidence" infants toddlers (0- <36-months), children (3- <10-years), young adults (19- <50-years). A "C" "limited was adolescents (10- <19-years). "B" "moderate" middle aged older (≥50-years). Research mass between ages 20- 50-years individuals ethnic groups apart Chinese females Caucasians is greatly needed. Daily low nonfat part healthy habitual dietary pattern may improved BMD total body at sites fewer adults.