Vitamin D for Bone & Immune Support

Vitamin D is a fat-soluble vitamin that isn't easily obtained through diet alone. Vitamin D supports bone and immune system health, helps preserve healthy cognitive function, 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 (125 mcg and 200 mcg) of vitamin D3 a day.

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Vitamin D3

Immune, bone & whole body health

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Brain, Bone, Immune Health

Get the health support you need—whether through a high or low vitamin D3, or even a vegan option—with supplements that support cognitive and immune function and bone health.

Vitamin D Blends

We’ve combined vitamin D3 with other nutrients, such as thyroid-supporting iodine and bone-supporting vitamin K, in combination formulas with dual-action health support.

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4 Reasons Why Everyone Should Take Vitamin D3

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

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More About Vitamin D Supplements

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.

Need help selecting what's best for you?

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