Vitamin Rich Foods: Magnesium, Potassium & Iron Sources

Foods rich in magnesium, potassium, and calcium are essential for heart health and muscle function. Discover the best dietary sources for iron and B12, and learn how steaming vegetables compares to boiling for nutrient preservation.

close-up of a young woman eating scrambled eggs with a fork

Keratin-Rich Foods

Published Jul,08 2011 | By Stephanie Brookshier

Keratin is a protein that adds strength to hair, nails and the outer layer of skin. Even though it isn't found in food, eating the right foods -- those rich in protein and certain vitamins -- can boost keratin production and support hair, skin and nail growth.