Diet can have a significant impact on nail strength and growth as nails require essential nutrients to be healthy. A balanced diet rich in vitamins, minerals, and proteins can promote strong and fast nail growth. Nutrients like biotin, vitamin E, iron, zinc, and omega-3 fatty acids are particularly beneficial for nail health. Including foods like eggs, nuts, seeds, leafy greens, and fish in your diet can help improve the strength and growth of your nails. On the other hand, a poor diet lacking in essential nutrients may result in brittle, slow-growing nails.