Eat more radishes! That’s because radishes contain sulfur and silica – nutrients that are vital for hair growth. For example, sulfur lengthens your hair’s growing phase – and helps form keratin, which is the protein in your hair shaft. Silica, the other important nutrient, makes hair stronger and more elastic. So it won’t break as easily. So stock up on radishes and have a serving every day, which is one cup. You can roast them in olive oil to make them sweeter – and then add a little sea salt to help cut the bitterness even more.