The product seams fine, you really don't know unless you get a blood test to check your vitamin d level. Product was perfect in all other aspects

Our doctors have told my wife and I to take vitamin D. (2000 IU). This is what he ordered at a good price.

These are great! I have a vitamin d deficiency and these are helping. Best price i have found. Been using for a few years

As a recommendation from my doctor, I need to take vitamin supplements. Members Mark offers the best value & my "numbers" are where they should be. I comparison shop a lot.

I routinely have my blood tested by an endocrinologist. After taking this product 2 and some times 3 a day for several months my very low vitamin D levels did not improve . The doctor recommended I take a different supplement.

So easy to take. The capsule size is on the bottle. My D-3 lab value increased before the bottle was finished. My D-3 level has stayed where my neurologist wants it to be for over 3 yrs.

The photo on the Sam's Club site clearly shows a USP certified label. Yet, when I received the bottle there is no USP certification on the bottle's label. Had I known they weren't actually USP certified, I would have never bought them.

Small pills, easy to swallow, don't get sticky

Great Value for Vitamin D

Works the same as all the other vitamin D’s I have tried.