Your nails are more than just polish canvases—they’re windows into your overall health. Brittle, ridged, or peeling nails can signal nutritional gaps, especially as we age. The good news? With targeted nutrients and simple dietary tweaks, you can support stronger, smoother nails from the inside out.
Here’s what science says your nails truly need:
💎 Top 6 Nutrients for Nail Health (and Where to Find Them)
1. Protein – The Building Block
- Why: Nails are made of keratin, a structural protein. Without enough protein, nails become thin and weak.
- Daily need: 0.8–1.0g per kg of body weight (e.g., 55–70g for a 150-lb adult).
- Best sources:
- Eggs (especially whites)
- Lean poultry, fish, Greek yogurt
- Lentils, tofu, quinoa (plant-based)
2. Biotin (Vitamin B7) – Strength & Growth
- Why: Biotin deficiency is linked to brittle nails. Studies show 2.5 mg/day can improve thickness in 3–6 months.
- Food sources:
- Cooked eggs (raw egg whites block biotin absorption!)
- Almonds, sweet potatoes, salmon, avocados
- Note: Supplements help if deficient—but food-first is safer long-term.
3. Iron – Prevents Spoon Nails & Brittleness
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