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vitamins and supplements

The Best Protein Powders for Women, According to Nutritionists

We asked nutritionists to share their favorites and why.

Why B Vitamins Are the Secret to More Energy

You could be seriously lacking in these key vitamins.

Should You Be Adding Collagen to Your Diet?

It's the latest in the turn-everything-into-a-powder trend.

The Best Powder Supplements for Your Diet

Find out which ones are really worth scooping up

Do Gummy Vitamins Actually Help Your Hair Grow?

The Kardashians may love 'em, but here's what a hair expert and nutritionist have to say.

What's That White Drink Kourtney Kardashian Drinks On KUWTK?

Here's what you need to know about the white drink you see Kourt drinking

5 Minerals That Seriously Supercharge Your Workouts

These minerals might be workout game-changers

This Vitamin Deficiency Could Be Causing Your Terrible Migraines

Science takes us one step closer to migraine prevention (thank god).

Why Your Probiotic Needs a Prebiotic Partner

Meet probiotics' supportive big sister.

This Vitamin Can Slow Down the Aging Process

Could anti-aging be as easy as popping a pill?

Does Sunscreen Really Block Vitamin D Production?

If this is your excuse for skipping SPF, prepare yourself—we asked a dermatologist for the final word.

Why More Tanning Means Less Vitamin D

The tanner you are, the less your skin absorbs the vitamin, according to a new study

Can a Niacin Vitamin Help Lower Your Skin Cancer Risk?

An exciting new study shows how taking a form of B3 vitamin can prevent future skin cancers.

5 Pro Tips for Buying Herbal Medicine

Just because they're plant-based doesn't mean they're safe.

Supplements Send 23,000 People to the ER Every Year

Just one more reason to steer clear of those "quick fixes."

"It's Not Female Viagra": One Woman Shares How Addyi Changed Her Sex Life

The FDA approved Addyi—now, one woman gets real about how the drug changed her sex life.

FDA Approves "Female Viagra" Pill to Boost Low Libido

For starters, it's not actually Viagra.

Are You ODing on Protein Powder?

Protein shakes and bars are a blessing for healthy people on the go, but we might be going overboard.

Can Too Much B12 Trigger a Breakout?

A new study sheds light on how B12 supplements can cause acne...and what to do about it.

5 Nutrients Even Healthy People Forget About

Eating right is no guarantee against illness—even the best dieters could be lacking in these necessary vitamins and minerals.

High Vitamin D Levels Linked to Increased Risk of Death

Just in time for spring, science shows that too much of "the sunshine vitamin" could be just as bad as not enough.

Ask the Diet Doctor: Are Plants or Meat Better Sources of Iron?

Whether you're a vegetarian or a meat-eater, iron is crucial to your diet. Our diet expert has the scoop on whether how you get that iron really matters.

5 Weird Health Risks of Low Vitamin D Levels

You know about depression, but we bet you didn't know a lack of the sunshine vitamin also increases your risk for these five things.

The Best Supplements to Make You Feel Beautiful

Smoother skin and fuller hair could be just one pill away.