Vitamin D Matters
I recently read an article on over-the-counter and compounded Vitamin D potency that I feel is worth sharing. You need to know that the Food and Drug Administration does not regulate vitamin D supplements, so potency may not be well evaluated.
In a recent trial examining Vitamin D in menopausal women, it was found that supplement potencies varied. Researchers tested 55 bottles of over-the-counter Vitamin D from 12 manufacturers. Results showed that the over-the-counter pills contained 52% to 135% of the expected dose instead of the required 90%-120% for solutions. When averaged over 5 pills, 1/3 did not meet standards.
The take-away message here is that it pays to purchase quality supplements. I’d be happy to answer any questions you may have and/or provide you with a good product.
(JAMA Intern med.2013;1-2. PMID: 23400578)
Erika Holenski, ND