The Essentials of Vitamin D Basics and Dosage

Most people don't have enough vitamin D — an essential nutrient acquired from the sun, natural food sources, and supplementation. You should have a solid understanding of the basics of vitamin D and dosage recommendations in order to optimize vitamin D levels and improve your health.

What is Vitamin D and How Does It Work?

Many people don’t have enough vitamin D, and are unaware of its many benefits. Scientists are discovering new possible roles for this important nutrient almost daily. If you think you have enough vitamin [more…]

How Vitamin D Affects Your Health

The medical community has known of the benefits of vitamin D on bone health for decades. In recent years, scientists have discovered that vitamin D may play a role in many other aspects of our health. [more…]

What Are the Major Sources of Vitamin D?

Outside the body, vitamin D comes from three major sources: the sun, food, and supplements. Sunlight is considered to be the best source of vitamin D for your body, followed by foods that contain vitamin [more…]

How Much Vitamin D Does Your Body Need?

If you want to optimize your vitamin D levels, you'll need to know how much vitamin D you need in your diet to get there. You can get vitamin D from your diet and also after the sun stimulates your skin [more…]

Vitamin D Overdose: Symptoms and Examples

Overdosing on vitamin D isn’t easy, but it is possible if you’re taking supplements. In contrast, your body doesn’t allow overdosing from the sun alone. When your vitamin D levels reach a high, potentially [more…]

How is Vitamin D Measured in the Body?

If you want to know whether you have enough vitamin D in your body, you must have a blood test for 25-hydroxyvitamin D. Depending on where you live, you may have trouble convincing your doctor to order [more…]

Watching for Vitamin D Deficiency in Children

Adequate levels of vitamin D are essential for children before birth, after birth, and throughout childhood to ensure the proper development of bones and teeth. If they get enough vitamin D throughout [more…]

The Importance of Vitamin D Levels at Age 70 and Beyond

As many as 70 percent of people age 70 and older have inadequate levels of 25-hydroxyvitamin D. They also tend to have low vitamin D levels all year long; they don’t get the summer boost from the sun. [more…]

Getting Enough Vitamin D before and during Pregnancy

Women should ensure that they have a satisfactory level of vitamin D both before and during pregnancy. Pregnant adult women and nursing mothers need 600 IU of vitamin D every day, and teen mothers need [more…]

What Is the Right Amount of Vitamin D for a Newborn Baby?

Although a newborn baby doesn’t need as much vitamin D as required by the pregnant or nursing mother, she continues to need sufficient vitamin D. Bones, organs, and critical structures in the brain are [more…]

The Best Natural Food Sources of Vitamin D

You might think that you'd be able to get enough vitamin D by eating animals and plants that are rich food sources of vitamin D; however, it’s not that simple. With rare exceptions, the vast majority of [more…]

How to Choose the Best Vitamin D Supplement

Most healthy adults need 600 or 800 IU of vitamin D per day. That means you can choose to take a multivitamin and mineral supplement that has this amount in it, you can take a combined vitamin D and calcium [more…]

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