How Much Vitamin D Should You Take?

How Much Vitamin D Should You Take? (3:22)

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.

Vitamins

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The Symptoms of a Vitamin B12 Deficiency

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The Key Nutrient You Need If You’re Fatigued

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How to Pick the Right Vitamins

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The Best Ways to Boost Your Vitamin B12

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Why Your Body Needs Vitamin B12

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3 Vitamins Worth Taking

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Boost Your Vitamin B12 Levels With This Fruit

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The Importance of Micronutrients

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Is This Nutrient Deficiency Giving You Anxiety?

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Do You Need More Vitamin D?

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How Much Vitamin D Should You Take?

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Where to Store Your Vitamins

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Are You Getting Enough Zinc?

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What Makes a Fish Oil Supplement Effective

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Does a Multivitamin Make Sense for You? It Depends

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Take Your Vitamin D at This Time

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Get Your B Vitamins to Boost Memory and Prevent Alzheimer's

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Best Time to Take Your Calcium Supplement

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Daylight Savings Time Change Increases Vitamin D Deficiency

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Not All Fish Oil Is Created Equal

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Should I Take My Vitamin Supplements In Liquid, Powder, or Tablet Form?

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Why Do Some Vitamins Make Me Nauseous?

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What Vitamins Should I Take to Slow Aging?

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What Vitamins Might Help with Memory?

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Is the Blood Level of Vitamin D in the Body Related to Cancer Risk?

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Vitamin C for Stronger Eyes

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Get Smart About Herbal Supplements

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What Vitamins Should a Woman Over 50 Be Taking?

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How Can I Lift My Mood?

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What Is an International Unit?

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Are Multivitamins Safe?

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How Much Calcium Do I Need Every Day?

1:04
How Much Iron Do I Need In My Diet Each Day?

1:50

If I Could Only Have One Vitamin, Which One Should I Take?

1:06

Why Should I Consume Vitamin D If I Want to Lose Weight?

1:06
Get Vitamin E from Food, Not Dietary Supplements

1:13

Which Vitamins Are Most Important for Healthy Skin?

0:36

Can I Get Enough Vitamin D Through Exposure to Sunlight?

0:50
Can Vitamin Therapy Help Treat ADHD?

0:37

Which Vitamins and Minerals Can Help Me Sleep Better?

1:17

How Much Vitamin D Should I Take Each Day?

0:46
Are B12 Shots Better Than B12 Supplements?

4:41

What Vitamins Can I Take to Boost My Energy?

1:47

Which Food Can Help Make Up a Vitamin E Shortfall In My Diet?

2:00
How Much Sun Is Needed to Keep Healthy Vitamin D Levels?

1:18

What Are Health Benefits of Vitamin D?

0:37

What Are the Health Benefits of Vitamin Supplements?

0:27
How Does Where I Live Affect How Much Vitamin D I Get?

0:19

How Is Vitamin B12 Deficiency Treated?

2:49

Why Is It Important for Children and Preteens to Get Enough Vitamin D?

0:46
Can Vitamin D Prevent Alzheimer's Disease?

0:49

What Are the Symptoms of Vitamin B12 Deficiency?

0:35

Will a Vitamin D Deficiency During Pregnancy Hurt My Baby?

0:27
Does Vitamin D Reduce the Risk of Heart Disease?

1:02

Which Foods Are High In Vitamin K?

0:55

What Is the Recommended Dietary Allowance (RDA) of Vitamin B12?

0:38
How Important Is It for Me to Take Prenatal Vitamins During Pregnancy?

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Can You Take Too Much of a Vitamin or Mineral?

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About Vitamins

Our experts agree it’s best to get vitamins and other nutrients from your diet, not dietary supplements. But sometimes it makes sense to take a vitamin, especially if you're deficient in vitamin D, omega-3 fatty acids and certain minerals.

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Frances Largeman-Roth, RD

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Diet & Nutrition