What food can be used to treat premature graying?

Condition analysis:
Traditional Chinese medicine suggest that He Shou Wu is able restore natural hair color by benefiting kidneys and liver. Based on them the cause of gray hair can be poor health of liver and kidney. He Shou Wu is known to be able to minimize hepatic fat and enhance red blood cells quality in the body. All these effects help to enhance blood circulation to the scalp, which leads to better nourishment of hair. Once hair follicles are able to receive more nutrients this results in enhanced production of Melanin.

Instructions:
The number of scientific studies on He Shou Wu and its effectiveness for reversing hair color is very limited. One study in particular tried to investigate this herbs ability to restore natural hair colors. 36 participants in this study were given Shou Wu liquor and even up to 89% of them noticed some improvements in their hair color. Other than that He Shou Wu was tested on animals and it showed potential in increasing lifespan and slowed down aging of some vital organs in the organism. Even though scientific studies on this natural herb shows some promising results, the number of studies done is certainly not sufficient. Due to this it can be said that more research is definitely needed in order to support this herbs effectiveness for reversing natural hair color.