Dr. Berg Maximum Strength 2-in-1 Vitamin D3 K2 5,000 IU | Naturally Derived D3 | 4X Lab-Tested & Verified | High Absorption Formula | K2 D3 Vitamin Supplement - 60 Capsules

I’ve had a positive experience with Dr. Eric Berg Vitamin D. It seems to reduce my joint pain and inflammation, and I’ve been getting sick less frequently, which may indicate improved immune support. I will repurchase.

I've been following Dr. Berg for many years now. Dr. Berg's supplements are known for their high quality and often stand out compared to other options on the market. They are formulated with a focus on premium ingredients and effective delivery to support overall wellness.

Another excellent product from Dr Berg. A little pricey but well worth it. His products have all the nutrients we expect. Our hair and nails grow like crazy. I have to file my nails daily because of new growth!

This is a great product. VITAMIN D/K2 Dr said my vitamin D levels were good.

Great stuff. No side effects.

These vitamins are good for the immune system and Dr. Berg's is one of the best.

This is an excellent combination supplement. A lot of people can be deficient in vitamin D and don't realize it is best absorbed with K2. This supplement has both in one pill. The pill is medium I would say for a supplement. It is easy to swallow as it is not very thick. Serving size is one capsule and you get 50 so almost a two month supply which is great for the price. There is no strange odors or tastes making it easy to take each day.

I highly recommend this vitamin D3. I’ve been taking it for about 10 days now and I can honestly feel a difference in my body, especially in my energy levels. No exaggeration. Something I’ve learned is that a lot of vitamin D products on the market either don’t have enough IU or are missing important cofactors that help your body actually absorb and use it properly. That’s what makes this one stand out. It feels like a high quality supplement, and so far I’m really happy with the results. Definitely worth trying if you’ve been feeling low on energy or think you might be deficient.

I like this combined vitamin very much. First, 10.000 IU vit D3 per capsule (I never take a capsule but drop the powder in water and drink) and then the additional K2 you need as well. I take it now every day and feel the difference already.

Great

must try

Good Quality, I bought this for a friend of mine who came out of a very hard disease and she's taking this supplement daily and is so happy with it, also very fast delivery

my 1st purchase was on January 2025 and I feel significant healthier than before regarding my knee pain and overall ...I used to get this "insufficient level" result of Vit D before I consumed this. Then after 4 months consuming Dr.Berg Vit D3 10000iu +K2 , I had my Vit D level checked again and the result showed "sufficient level" on May 2025. I'm happy that this supplement actually works. For maintenance I consume 5000iu now.