- Sweet potatoes
Sweet potatoes are on the list because of their beta-carotene. This compound is converted by the body into vitamin A, which we know helps with the production of sebum. Sebum is essential to the health of the scalp and, by extension, helps to keep hair hydrated.
Vitamin A can also increase hair growth rates and encourage thicker strands, as well as prevent other hair follicles from regressing. You can get over 4x your Beta-carotene RDA in a medium sweet potato.
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