This study aimed to investigate the relationship between the Composite Dietary Antioxidant Index (CDAI) and sarcopenia in middle-aged and older adults using data from the 1999 to 2018 National Health and Nutrition Examination Survey. The study included 6621 participants from National Health and Nutrition Examination Survey. CDAI was calculated based on dietary data from the first 24-hour dietary recall, reflecting the intake of 6 major antioxidants: vitamins C, E, and A, carotenoids, zinc, and selenium. Sarcopenia was defined using the sarcopen...
