What to Eat to Reduce Nail Grooves: A Dietary Guide for Healthier Nails
2. Biotin (Vitamin B7): The Nail-Strengthening Nutrient
Biotin is one of the most well-known nutrients for nail health. Studies suggest that biotin supplements can improve brittle nails, but many people can get enough from food alone.
Good dietary sources of biotin include:
- Eggs (fully cooked)
- Almonds and walnuts
- Sweet potato
- Spinach
- Lax
Biotin supports the keratin structure, which helps nails grow thicker and less prone to splitting caused by brittleness.
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