Milk itself does not contain keratin. While milk is often touted as beneficial for hair health, it is not because it directly supplies keratin. Milk is a rich source of calcium, which plays a role in the body's production of keratin. Keratin is a protein that makes up hair, skin, and nails.
The claim that milk contains keratin likely stems from the fact that milk products, particularly goat's milk, are often found in hair care products. These products typically contain milk proteins, which can help to moisturize and strengthen hair, but they do not directly add keratin to the hair.
To increase keratin levels in the body, consuming foods rich in biotin, vitamin A, and zinc is recommended. These nutrients support the production of keratin. Examples of keratin-rich foods include:
- Eggs
- Salmon
- Spinach
- Nuts and seeds
Therefore, while drinking milk may indirectly benefit hair health by providing calcium, it does not contain keratin itself.
