Dr. Oz has the tools you need to fuel your diet with feel-good foods, and healthy steps that will make you feel better from the inside out.

Essential Vitamin D Checklist

Learn why vitamin D is an essential nutrient and how to get your daily dose!

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Brian Dixon, PhD, the executive director for health education for USANA, explains how you can make an informed decision when choosing a nutritional supplement and how much vitamin D he recommends for daily intake.

Your Vitamin D Grocery List

This could be the natural boost to your immune system you've been looking for.

Quiz: Are You Vitamin D Deficient?

This assessment can help you determine if you need more vitamin D.