Regan L Bailey, Shinyoung Jun, Alexandra E Cowan, Heather A Eicher-Miller, Jaime J Gahche, Johanna T Dwyer, Terryl J Hartman, Diane C Mitchell, Rebecca A Seguin-Fowler, Raymond J Carroll, Janet A Tooze
Precise dietary assessment is critical for accurate exposure classification in nutritional research, typically aimed at understanding how diet relates to health. Dietary supplement (DS) use is widespread and represents a considerable source of nutrients. However, few studies have compared the best methods to measure DSs. Our literature review on the relative validity and reproducibility of DS instruments in the United States [e.g., product inventories, questionnaires, and 24-h dietary recalls (24HR)] identified five studies that examined validity ( n = 5) and/or reproducibility ( n = 4)...
May 17, 2023: Annual Review of Nutrition