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10. Leafy greens

Leafy greens are a super healthy way to protect your existing hair. Swiss char, watercress, spinach, and cabbage can all increase keratin, which is a protein that strengthens hair follicles. These greens are also filled with vitamins A, C, and K, B-vitamins, potassium, and folate. Grab a salad for lunch or as a side dish each day for the best results.

pasta with swiss chard Zoryanchik / Getty Images
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