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:
Vitamin D is a fat-soluble, hormone-like vitamin, which means body fat acts as a sink by collecting it. If you're overweight or obese, you're therefore likely going to need more vitamin D than a slimmer person -- and the same holds true for people with higher body weights due to muscle mass.