OK I'm being a little facetious but after reading this Japanese article I, (who am follically challenged), can see myself going in for a daily order for papas fritas.
https://moneyish.com/ish/a-chemical-found-in-french-fries-may-be-a-key-to-growing-thicker-hair/
https://moneyish.com/ish/a-chemical-found-in-french-fries-may-be-a-key-to-growing-thicker-hair/