Vitamin D for Bone & Immune Support

Make sure you’re getting enough vitamin D

Vitamin D is a fat-soluble vitamin that isn't easily obtained through diet alone. Vitamin D helps preserve youthful cognitive function, supports bone and immune system health, helps maintain already-healthy blood pressure, encourages a healthy inflammatory response and promotes endothelial function. We recommend between about 5,000 IU to 8,000 IU of vitamin D3 a day.

4 Reasons Why Everyone Should Take Our Vitamin D Supplements

  • Supports bone health & immune system function
  • Promotes cardiovascular & endothelial health
  • Helps maintain already-healthy blood pressure
  • Helps maintain youthful, healthy cognitive function

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Vitamin D3

The sunshine vitamin is key to strong bones & immune health

125 mcg (5000 IU), 60 softgels


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We offer vitamin D in various dosages, from 25 mcg (1,000 IU) up to 175 mcg (7,000 IU). Our vitamin D supplements are available in flavored and unflavored liquids, convenient softgels and as part of these multi-nutrient formulations.

Vitamin D3

Your skin manufactures vitamin D when exposed to sunlight, but that shouldn’t be your only source. A vitamin D supplement goes a long way: We recommend about 125 mcg (5,000 IU) to 200 mcg (8,000 IU) of vitamin D3 a day.

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Vitamin D plus other nutrients

With multi-nutrient formulas, you get all the health benefits that come with vitamin D supplementation, plus other beneficial ingredients, such as calcium, vitamin K and iodine. These formulas provide support for healthy bone density, arterial health and more.

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Vitamin D helps preserve youthful cognitive function, supports bone and immune system health, helps maintain already-healthy blood pressure and more. If your multivitamin already delivers 1,000–3,000 IU of vitamin D, a high-potency vitamin D3 supplement would be ideal.

We’ve combined vitamin D3 with other nutrients, such as Sea-Iodine™ to support thyroid health, vitamin K to promote bone and arterial health, and calcium citrate to support healthy bone density.

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What is vitamin D?

Vitamin D is a fat-soluble nutrient that plays an important role in many aspects of our health. Your skin produces vitamin D with sun exposure, which is why this nutrient is nicknamed the "sunshine vitamin." But many of us don't produce enough on our own.

What does vitamin D do?

Vitamin D plays a role in nearly every cell in our bodies—so it's critical for optimal health. One of its better-known functions is to help maintain strong bones and teeth by promoting calcium absorption. Vitamin D does this is by maintaining healthy levels of the parathyroid hormone, which plays an important role in maintaining calcium in the bloodstream.

Vitamin D also supports immune health, brain health, and maintains already-healthy blood pressure.

How much vitamin D should I take?

While it can be found in some foods, such as fatty fish (salmon, sardines, herring), it's not easy to get the vitamin D you need through diet alone. Vitamin D supplements come in various dosages. You can take vitamin D as capsules, tablets or even liquid drops.

So how much vitamin D is right for you? Life Extension recommends taking 125 mcg (5000 IU) of vitamin D3 a day, but you can get a clearer understanding of your needs by testing your blood levels.

As always, it's important to ask your doctor for advice on what approach works best for you.

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