Vitamin D3

9 reviews
Sale price $ 24.95 - $0.27/serving - 90 servings Save $ -24.95
Gluten Free
KETO Friendly
Soy Free
Paleo Friendly
Dairy Free
Made in the USA

59821 in stock

Introducing a better Vitamin D3 with added Coconut Oil & Bioperine to boost absorption! According to a recent study, as many as 75% of Americans are deficient in Vitamin D -- a Vitamin essential in promoting healthy bones and muscles, mood, energy, cardiovascular health, and supporting your immune system. 

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We offer standard shipping (3-4 business days) and priority shipping (2-3 business days). It typically takes 1-2 business days to process your order.

No Hassle Returns & Easy Exchanges
Opened orders made within 60 days are eligible for an exchange or store credit, one per year. Send any qualifying piece back within 60 days for a refund minus a small restocking fee. Returns are valid on unopened US orders only. Returned postage to be paid for by customer. Please see our returns page for full details.

Do you have any samples?
We currently do not offer any samples, however, we do have an excellent exchange program, in case you aren't satisfied. Please see our returns page for more information.

Got more questions?
Email us at or text us at (808) 378-3696.

Vitamin D3
Vitamin D3

Product Overview

According to a recent study, as many as 75% of Americans are deficient in Vitamin D -- a Vitamin essential in promoting healthy bones and muscles, mood, energy, cardiovascular health, and supporting your immune system.

In order to get enough Vitamin D through the synthesis of Vitamin D3 in your skin from sunlight, The Vitamin D Council recommends up to 2 hours a day for a person with dark skin. Yes, you read that correctly.

For those of us who have sh#t to do, we’ve developed our new Vitamin D3 liquid capsules with added Coconut Oil and Bioperine. Often referred to as the sunshine vitamin, our Vitamin D3 capsules are in the same bioavailable form of Vitamin D that is naturally produced by your body when exposed to sunlight.

Unlike other Vitamin D supplements, our capsules contain zero preservatives and zero lactose -- making it the perfect choice for athletes looking for a clean source of D3. In addition, the combination of added Coconut Oil and Bioperine help increase the bioavailability and absorption of this fat-soluble vitamin to ensure you’re not flushing money down the drain.

5000 IU of Vitamin D3
500mg of Coconut Oil to Boost Absorption
5mg of BioPerine to Boost Absorption
Promotes healthy bones & muscles
Supports immune system, & cardiovascular health
Boosts mood


Vitamin D3, also known as cholecalciferol, is your bodies preferred form of Vitamin D found in oily seafood, egg yolks, butter, and dairy. The interaction with ultraviolet B radiation from the sun catalyzes the synthesis of vitamin D3 in the skin. Vitamin D2, known chemically as ergocalciferol, is derived from plants. Whereas our skin produces vitamin D3, the skin of fungi and plants produce vitamin D2. Notably, humans do not naturally produce vitamin D2, making vitamin D3 the more bioavailable and natural type.

We have a blog post here that breaks it down, but here are the top three reasons: Vitamin D3 is better at raising Vitamin D levels in the blood. Vitamin D3 lasts longer in the blood than Vitamin D2. And finally, Vitamin D3 has a longer shelf life in general.

We decided upon the 5000IU option because it will get at least 97% of the population to above 30ng/ml of Vitamin D and not cause any toxicity issues. Here's a link to a study showing the amount of D3 needed in order to obtain a Vitamin D level of 40ng/ml. 10,000IU is generally recognized as the safe upper limit for adults by The Endocrine Society.

Customer Reviews
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Navarre, Florida, United States

Amazing product!

Really like how this d3 helps boost my immunity! Keeping me healthy an strong!


Keep your body ready for anything Vai!

Eric H.
Columbia, Maryland, United States

Feeling good!

Feeling a lot better than last winter when I was taking a D supplement from another company.


I feel a lot better that you did as well, you probably weren't getting the proper dosage. We got you covered.

Saint G.
Federal Way, Washington, United States


This product is the best for me during the casual and frequent gloomy weather herein Oregon. Keeps my immune system right through the cold and rainy weather.


Glad to hear you're utilizing our D3!

New York, New York, United States

Love it!

Have purchased the Vitamin D several times. I am very happy with it. I trust all ATH products...been using the BCAA, PRE and most recently starting taking their Multi. Three cheers for a great company!!!


Cheers to you too Susan!

Fremont, California, United States

bought 2

I have two of these, this is my first time taking vitamin D3, I like that the pill is very small, and the contents in it look so cool. I don't know where else to get vitamin D3 in food, so it's cool to take this.


We're here for you Andrea!

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