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.

Amazing med, I have a low D problem so it’s a must have for me. I didn’t realize how important the K part works until I listened to Dr Berg on Facebook. I do notice a little less joint pain. Over Christmas I had a friend visiting, he’s a big guy post stomach staple surgery. He was acting like a jerk, very irritable and anxious. I’m a nurse so I started him on these pills and gave him a bottle to take home. When he followed up with his doctor he indeed have a very low vitamin D issue. His doctor gave him a script until his levels are better but want him to continue on these after. He is up to normal.

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!

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

Its a good product. But be careful. Chk your blood vit D level. Mine ckd a week ago was 140. Way too high bordering on dangerous. I have one kidney and low hematocrit. That can cause D3 to be raised by the body not the dosage of this supplement. Pls make sure you insist your Dr orders D3 and CMP. Very important. You most likely have to ASK your Dr to order this (sadly) !!

Consistent use of this product has improved my oral health and Vitamin D levels in my body. Value is good for the price and it has been easy to add to my daily routine.

Very important vitamin to take. Great product!

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.