According to research, a person's hair grows at a rate of 1.25 cm per month and 15 cm per year. The rate at which hair grows, on the other hand, is determined by factors such as age, fitness, heredity, and diet. You can't control your genetics or your age, but you can manage your diet. You can make your hair healthier, shinier, and smoother by controlling your nutrition. Here are the beneficial foods your should consume for healthy hair: