Nutrition plays a crucial role in maintaining healthy nails. A balanced diet rich in essential nutrients such as biotin, vitamins A, C, D, and E, as well as minerals like iron, zinc, and calcium, can help promote strong and healthy nails. Protein is also important for nail health as nails are made up of a protein called keratin. Inadequate intake of these nutrients may lead to brittle, dry, or weak nails. Consuming a variety of nutrient-dense foods and staying hydrated can help improve the overall health and appearance of your nails.