Though you only need it in small quantities, zinc keeps your skin healthy and strong and boosts your immune system. Dietician Samantha Heller explains how much you need and the best foods that have it.

Watch more 30 Days of Beauty tips.


Here's Why Your Heartburn Just Won't Go Away

Dr. Oz viewer Rose wants some help!

Dr. Oz talks to viewer Rose, who says her heartburn never seems to go away even after taking antacids. Watch the video below to see what could be giving Rose such bad heartburn (food, activities) and what she can do to help get rid of it.