Keratin-containing vegetables include kale, broccoli, onions, leeks, and garlic. Other healthy sources of keratin include liver, salmon, yogurt, and low-fat milk.
The ideal foods for a protein-rich diet include lean meat, poultry, fish, eggs, and low-fat dairy. Red meat is also beneficial, but should be consumed in moderation due to its high fat content.
Salmon, mackerel, herring, trout, sardines, and tuna are the most omega-3-rich fish. Mackerel should be avoided if you are pregnant.
Vitamin C-rich foods include citrus fruits and juices, tropical fruits, and leafy greens including cabbage, spinach, and turnip greens.
Biotin-rich meals include eggs, whole grains, nuts, and vegetables such as cauliflower, black eyed peas, soy beans, and mushrooms.
Foods high in cysteine include eggs, cattle, pork, seeds, and milk. Keep in mind, of course, that lean and low-fat foods are better for your general health.
Hair products containing keratin should be clearly labeled as such, so seek for them at your local pharmacy or beauty supply store.