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Rated 4.7 out of 5
56 Ratings

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Chances are you might not be getting enough sun every day. Vitamin D supplementation may help support nutrient absorption, hormonal function, immune function, and reducing inflammation. Primal Sun is a pure and potent source of Vitamin D that offers the protection you need.
100% Satisfaction Guaranteed or Your Money Back

Why Use Primal Sun?

Why Use This

The sun is our primary natural source of vitamin D, but the vast majority of adults do not get enough sun exposure. Recent studies continue to support that vitamin D can be a  “superstar” nutrient. (Fun fact: it’s actually not a regular vitamin but a steroid hormone.) Vitamin D not only regulates levels of calcium and phosphate in the bloodstream, but also works together with calcium, vitamin A and vitamin K2 to promote the mineralization and growth of bones.

Vitamin D plays a massive role in the immune response, activating and “arming” the killer T-cells for defence against infections and bacteria. It modulates the expression of genes that regulate cell proliferation, and it reduces systemic chronic inflammation. And yet it is one of the most chronically deficient vitamins in Americans today! Chances are you may not be getting enough sun every day, and Primal Sun is the perfect support system for that.* 

Supplement Facts

Serving Size : 1 capsule
Servings Per Container : 180
Amount Per Serving % Daily Value*
Vitamin D3 (as cholecalciferol) 1,000 IU 250%
Vitamin D2 (as ergocalciferol) 1,000 IU 250%
Mushroom Vitamin D2 5 mg *
Calcium (as calcium citrate) 50 mg 5%
Beta Glucan 15% 50 mg *

* % Daily Value not established

Suggested Use

For adults, take one (1) to two (2) capsules daily, preferably with a meal.

Key Attributes

  • 2,000 IU
  • 500% Daily Value
  • Small, Easy-to-Swallow Capsule

Key Benefits

  • May Support the Immune System*
  • May Support Strong Bones*
  • May Help Reduce Inflammation*

Promotes Strong Bones

Essential vitamin D helps regulate levels of calcium and phosphate in the bloodstream and promotes the mineralization and growth of bones by working together with calcium, vitamin A and vitamin K2.*

Supports the Immune System

Severe vitamin D deficiency (50% of the population is at risk for vitamin D deficiency!) can cause rickets. Vitamin D plays a massive role in the immune response, activating and “arming” the killer T-cells for defense against infections and bacteria. It modulates the expression of genes that regulate cell proliferation, apoptosis and differentiation, suggesting a potential role in cancer incidence.*

Helps Reduce Chronic Inflammation

Epidemiology suggests links between vitamin D deficiency and most cancers, including breast and colorectal. Vitamin D helps protect against cancer, and also heart disease, in part because it reduces systemic, chronic inflammation.*

Customers Love Our Primal Sun

average rating 4.7 out of 5
Based on 56 ratings
  • 5 Stars
    48 Reviews
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100% of reviewers would recommend this product to a friend
23 Reviews
Rated 5 out of 5
Review posted

Great Product

I’ve had trouble in the past with vitamin D causing headaches. Even though I get plenty of sun and live in the south, my D levels remain low. This is the first D supplement that I have been able to tolerate. Thank you.

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Rated 5 out of 5
Review posted

Quality source of Vitamin D as the PNW heads toward winter

I live in the Pacific Northwest of the US and as the days are getting shorter as winter approaches, I need a quality source of Vitamin D. I know Mark stresses the importance of bioavailability of the various supplements available out there, so I know I'm getting a quality product when I order Primal products.

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Rated 5 out of 5
Review posted

New to this

I’ve just started taking this product. I live in the Midwest so we’re coming into the seasons of very limited sunshine. I know this is a clean product and I trust the folks at Primal!

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Rated 5 out of 5
Review posted

easy way to get adequate Vit D, no matter the weather

liked the fact that it is capsules, not tablets bc high heat used to formulate tablets can compromise vitamin quality

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Rated 5 out of 5
Review posted

5 stars

It’s hard to keep up with my own health when caring for four boys under 5 years old, so being able to take one/day makes life much simpler than some options.

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Frequently Asked Questions

How much vitamin D do I need per day?

Since 2010, the recommended daily allowance of vitamin D has fallen between 400 and 800 IU per day, but new research suggests adults may actually need at least 2,000 IU of vitamin D every day, and the best source of vitamin D is from the sun! It is estimated that the human body is able to produce 10,000 IU to 20,000 IU of vitamin D3 from as little as 30 minutes of sun exposure. However, the majority of adults do not get even 30 minutes of regular sun exposure. Subsequently, vitamin D deficiencies are rising among all age groups in the U.S. Vitamin D food sources, such as salmon, egg yolk and raw milk, only provide around 200 IU to 400 IU of vitamin D, which is why most adults would benefit from vitamin D supplementation.

Is it possible to take too much vitamin D?

Taking too much vitamin D is called vitamin D toxicity, but such a scenario is highly unlikely. You’d have to take 40,000 IU per day for a couple of months or longer to be in danger of developing vitamin D toxicity.

Is it better to get sun than to take supplements?

Take stock of your living situation. If the sun is pretty much a constant where you live, then opt for some actual rays whenever possible. It’s free, it’s safe, it’s easy and it’s enjoyable! For those of you who work in an office or live in a colder climate, supplementation is an easy and effective way to ensure adequate vitamin D levels.

Can I get vitamin D through food?

Certain foods are touted as vitamin D powerhouses: wild salmon, mackerel, herring, catfish, cod liver oil and eggs. Each of these foods is an excellent primal approach to eating, but won’t significantly enhance vitamin D levels. If your vitamin D levels fall within the danger zone (less than 40 ng/ml), then supplementation is strongly advised.

How long does vitamin D stay in the body?

It’s believed that when taken orally vitamin D has a half-life of one month. Because excess vitamin D is stored in fat, some vitamin D can remain in the body for an extended period of time to be used during months when access to the sun is limited, such as the winter season.

How long is the shelf life for this product?

It maintains optimum potency for up to 18 months.

How do you manufacture vitamin D3?

Vitamin D3 is manufactured by irradiation of 7-dehydrocholesterol from lanolin (from sheep's wool) and the chemical conversion of cholesterol. We have found that while D3 seems to be preferred by most, some people just can't absorb it well, so we offer both forms in Primal Sun.

Do you have a money back guarantee?

Yes! We offer a 30-day money back guarantee. If you aren’t completely satisfied with the product, simply return it and we’ll refund you.

Information is subject to change and packaging may not be an exact match to labels and packaging in the marketplace.


* There is no guarantee of specific results and results can vary from person to person. However, we feel so strongly about our products that we offer a 30-day money back guarantee. Try Primal Sun today, and if you're not completely satisfied with the results, return it for a full refund minus shipping and handling.