If you have lines on your nails, it means you have ca…See more

biotin deficiency is uncommon, some research suggests biotin supplements may improve brittle nails in certain individuals.

Food sources include:

• Eggs
• Salmon
• Almonds
• Walnuts
• Sweet potatoes
• Sunflower seeds

Consult your healthcare provider before taking supplements, as high-dose biotin can interfere with some laboratory tests.

4. Zinc

Zinc supports healthy tissue continue reading …