Hard to know: Because vitamins are sold otc and not assessed for efficacy by the fda it is not possible to tell differences from product to product. Whether or not this is accurate advice i don't know, but the more popular name brands are said to be more reliable. Hope that helped.
Answered 6/27/2013
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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