Get Rid of White, Starchy Grains
Another food type you should be avoided if you are looking out for your hair health is starchy refined grains. These types of foods are things like white bread, pastries, white pasta, and also cakes. These are all overly processed starches.
They will all be converted into sugar in your body, and this can lead your hair to thin. Replace these starches with whole wheat and natural sugars to allow your body to absorb the protein that it is craving.
Sources:
https://www.goodhousekeeping.com/health/diet-nutrition/g26975180/food-for-hair-growth/
https://www.bbcgoodfood.com/howto/guide/what-eat-healthy-hair
https://www.eatthis.com/foods-for-healthy-hair/