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Vitamin & Supplement Facts

Vitamin and supplement facts can help you determine whether you need to complement your diet. Read up on the facts before you head to the store.

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How Vitamin B12 Works

Vitamin B12 has a different chemical makeup and it's created differently than any other vitamin. Most of us get plenty vitamin B12 in our diets. Find out what to do if you don't.


You Might Need Half as Much Vitamin D as Previously Thought

When scientists used a new measurement technique on an earlier clinical trial, they got some very different results.

How Dietary Supplements Work

There's so much information (and misinformation) out there about dietary supplements, it can be hard to know what to believe. Here are some general guidelines.

Everything You've Read About Vitamin D Is Wrong

A review of existing studies found increasing your intake of vitamin D didn't help to cure or prevent several diseases.

Can vitamin C help prevent dengue fever?

Some people swear by vitamin C to prevent colds. Is it powerful enough to stop disease?

10 Supplements That Do Not Work as Advertised

Is fish oil just snake oil in disguise? Will echinacea really help you combat a cold? Many of the claims around supplements are actually just marketing hype.

Best Herbal Supplements

Curious about which herbal supplements are best suited for your needs? Learn about the best herbal supplements and common uses.

Electrolyte Supplements Explained

From sports drinks to high-tech powder mixes, electrolyte supplements on the market are targeted to athletes needing to rejuvenate. Why are electrolytes so important?

Daily Recommendations for Vitamins, Minerals and Supplements

Vitamins and supplements can be beneficial to your health, but the number of choices available today can be overwhelming. Use the guide below to see the optimum daily dosage of many vitamins, minerals and supplements.

What vitamins stop you from being cold all the time?

Do you run a space heater in your office, even in August? Can you not warm up no matter how many layers you wear? The culprit could be a vitamin deficiency.

What vitamins help keep you alert?

Can't get through the day without an afternoon pick-me-up snack? Instead of feeding your fatigue with unhealthy, empty calories, try fine-tuning your diet to keep fatigue at bay.