talcum powder (plural talcum powders) Perfumed talc (sometimes with the addition of boric acid) for adsorbing moisture on the skin.
Vitamin D is a fat-soluable vitamin, meaning that it builds up in your body over time rather than being filtered by your kidneys then peed out, like vitamin C. And it IS possible to overdose on vitamin D. One of the symptoms of Vitamin D overdose is muscular weakness and fatigue. You might want to check this website:
Muscle and bone biopsy were not done. The cause of vitamin D deficiency (osteomalacia) was not evident, and it was considered due to undernutrition. The patient was treated with vitamin D (1500 IU/day) with calcium supplementation (1000 mg/day). The headache subsided completely in about 4 weeks' duration. Six weeks later, the diffuse body pain disappeared completely. Muscle strength and bone tenderness improved markedly in 4 months' duration.