Getting enough foods high in zinc is essential for many functions in the body to work as they should. Zinc is one of those minerals responsible for almost everything, from protein synthesis to cellular metabolism, as well as hormone and energy regulation. A powerful antioxidant, zinc is directly related to cell division, wound healing, thyroid regulation, maintaining good vision and even increased libido. Zinc also plays a major role in healthy hair growth, as the growing of our hair depends on normal cell reproduction.
Depending on your age, various life cycles and events (such as pregnancy, lactation, and vegetarianism) the RDA (Recommended Daily Allowance) of zinc can vary from 2 mg to 13 mg, according to the National Institutes of Health.
Since your overall health DOES make a difference; what goes on inside your body reflects on the outside, especially when it comes to your hair.