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:
A lack of vitamin D can lead to bone diseases such as osteoporosis or rickets. Vitamin D also has a role in your nerve, muscle, and immune systems. You can get vitamin D in three ways: through your skin (from sunlight), from your diet, and from supplements. Your body forms vitamin D naturally after exposure to sunlight.