Garlic

Garlic is widely recognized for its ability to fight bacteria, viruses, fungi, and even parasites. Not only that, similar to onions, garlic contains a lot of N-acetylcysteine, which your body converts to L-cysteine, an amino acid that is found in keratin.

Some studies indicate that garlic may benefit skin health, while the further human study is required. For instance, a test-tube study discovered that garlic extract protected keratinocyte cells, which produce keratin, against UV damage. Studies on animals and in test tubes further indicate that this well-known allium vegetable may accelerate wound healing, combat infections, and delay the effects of aging. Additional healthful micronutrients in garlic include manganese and vitamin B6. Consuming garlic is also a great method to sneak in healthy minerals like selenium and vitamin C.