Also, it's dirt cheap. Our best food sources are green leafy vegetables. Biotin is also supposed to be made in the gut, and its main role in life seems to be to make us look good-it's amazing for hair, nails, and skin. Like vitamin K, biotin is non-toxic and may even be cheaper. There is no RDA for biotin, and supplements are commonly found at 1,000 mcg.
Food sources are starches, grains, fruits and vegetables.
Without these supportive structures our teeth would be worthless. Also, a lot of the mouth sores and other painful annoyances that happen to the lining of the mouth might benefit by biotin. There's a national movement underway to completely revamp the human digestive system. I've seen a three-cup plate of pasta disappear within five minutes. This is Mouth Abuse.