Vitamin D has recently received recognition as another potential intervention modality for sarcopenia.6 Recent findings have demonstrated that vitamin D plays an important role in skeletal muscle tissue by maintaining the function of type II fibers, preserving muscle strength and preventing falls.23 Vitamin D receptor knock-out mice are characterized by growth retardation, muscle impairment, and smaller diameters of muscle fiber than those of wild-type mice.24 Older adults are at increased risk of vitamin D insufficiency due to various factors. Here, VDR is linked to sarcopenia.