Does More Protein Always Mean Better Hair?
More protein is not always better. Once daily needs are met, excess protein doesn’t automatically translate into faster or thicker hair growth. Hair follicles can only use a certain amount of amino acids at a time. Excess intake may simply be used for energy or stored. For hair health, meeting—not greatly exceeding—protein requirements is usually sufficient. Balance with other nutrients is essential, as deficiencies elsewhere can limit the benefits of protein.