Nutritional Support for Brittle Nails and Hair Loss Brittle nails and hair loss are often signs that your body isn’t getting the nutrients it needs. While genetics, stress, and hormonal changes play a role, proper nutrition can make a big difference in strengthening nails and promoting healthy hair growth. Key Nutrients for Strong Nails and Hair: Biotin (Vitamin B7) Biotin is a water-soluble vitamin that strengthens hair and nails by supporting keratin production, the protein that forms the structure of hair strands and nail plates . Deficiency can lead to thin, brittle nails and hair that breaks easily. Protein Hair and nails are primarily made of protein, so adequate protein intake is crucial. Sources like eggs, lean meats, legumes, and nuts provide the amino acids necessary for strong, resilient hair and nails. Iron Iron supports the production of hemoglobin, which carries oxygen to hair follicles. Low iron levels can lead to hair thinning and slower nail growth. Incorporating ...