For example, we did not control for other 25(OH)D-related hormones (e.g., parathyroid hormone, PTH) and measures of bone health (e.g., bone mineral density), which have been implicated in the increased risk of sarcopenia (i.e., progressive loss of muscle mass and strength) [53], and higher GS and lean mass in older adults [54], respectively. This evidence concerns the gene PTH and sarcopenia.