I often get asked for advice on what brand of vitamins, minerals or supplements to purchase. The question is really about whether what's on the label is also in the pill. I can not answer this question but there is resource on the web that can help.
A private group called ConumerLab routinely assays the contents of various brands of the natural supplements and publishes reports on their findings. A yearly subscription to get the results is quite reasonable. They have published reports on calcium products, CoQ-10, multivitamins and many other products in the past year or so.
Although most of the time they find the label matches the actual capsule contents, they do find significant variations sometimes. There is no pattern to the exceptions.
I strongly recommend you sign up at www.ConsumerLab.com and start a subscription to their very unique and helpful service.
drBob
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