Best Vitamin D3
Doctor's Best

Best Vitamin D3

Supports bone density, bone structure, adaptive & innate immunity and cardiovascular function*
Help Maintain Strong Healthy Bones!*
9.6  out of 10  (8 Reviews)

Product Overview

Approximately 75% of
Americans are deficient
in Vitamin D

Doctors best





3rd Party


cGMP Certified

Doctor’s Best Vitamin D3 supports healthy bone density and structure.* Vitamin D3 supports immune function, supports cardiovascular function and enhances cellular function.*

  • No Colors
  • No Flavors
  • No Soy
  • No Additives

Gluten Free


GMO Free


No Soy

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Ratings & Reviews

Best Vitamin D3
Overall Rating
8 Ratings
Verified Buyer Rating
7 Ratings
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
May 01, 2019
Verified Buyer

the price compared to amount is the very cheap. i have one concern regarding the daily does, is 5000 IU safe for daily does or it should be weekly ?

Nov 18, 2018
Verified Buyer

Not too much to say with this one. Does the trick and the price is right.

Oct 12, 2018
Verified Buyer


Aug 29, 2017
Verified Buyer

Doctors best has high quality products with pure ingredients at a great price. The vitamin D is excellent

Aug 19, 2015
Verified Buyer

Great price. Very easy to take.

Feb 20, 2015

It's really hard to understand if it works or not, cause is just a vitamin, so unless you are lack of it, you can't really say anything. I rate this product cause is a very good price for a very good amount of d3. 1 caps a day is enough and it can last from 6 months to 1 year so it's pretty awesome, Vitamine d3 helps the body in so many functions, so is always good taking it, specially if you live in places where taking the sun is nearly impossible (like Edinburgh where i'm actually living ahah). If you can take the sun for 20-30 minutes each day just on face and arms, is enough to produce enough vitamin d3, otherwise maybe a supplementation is a good idea.

Jun 17, 2014
Verified Buyer

Good product, it helped me with the sleep too, plus i am a person who has Calcium deficit and this D3 vitamin actually helped me to stabilize the calcium in my body, over all good stuff.

Dec 07, 2013
Verified Buyer
No written review.
3 Sizes
5,000 IU/360 Softgels
Choose a Size
{{group.violatorText}} {{}}
Choose a Flavor
Flavor Rating: {{sku.flavorRating | flavorRating}}
Was:  {{}}
Price: $16.99  ($0.05 / Serving)
On Backorder
Flavor Rating:
Help Maintain Strong Healthy Bones!*

What's in Doctor's Best Best Vitamin D3

Serving Size1 Softgel
Servings Per Container 360 Servings
Amount per serving % Daily Value
Vitamin D3 5,000 IU 1,250%
Other Ingredients:
Extra Virgin Olive Oil, Softgel Capsule (Gelatin, Glycerin, Purified Water).
The vitamin D3 contained in this product is derived from lanolin, a component of sheep's wool.
Not suitable for vegetarians. Contains nothing other than listed ingredients.

Directions For Best Vitamin D3: Take 1 softgel daily with food or as directed by a nutritionally-informed physician.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Learn more about Vitamin D.
Check out other Bone Support Products.