My daughter has been taking them for about 3 months now. I talked to the dietician at our CF center about them and she said she has heard really good things about them and that as long as she is still taking her ADEK vitamins that she should be ok to take them. From what I understand it is a more natural form of them different vitamins and easier for you body to absorb. My dad is a diabetic and has been taking them for the same amount of time and has really seen a difference. Just to let everyone know that for every adult that purchases the vitamins, you get a free box of childres Juice Plus free. (for ages 4-16 I believe) That is the only reason we even heard of them.