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Nails, like hair and skin, are metabolic mirrors. Composed of layered keratin, they grow slowly (3 mm/month), making them sensitive barometers of nutritional status, hydration, and systemic balance. When they thin, peel, or splinter easily, it’s rarely just about polish or genetics. It’s physiology speaking in fragments.
What Weak Nails Reveal—And How to Respond
1. The Nutrient Deficit You Can’t Ignore
Nails need sustained nourishment—not quick fixes. Three key deficiencies commonly manifest here first:
