About John Cannell, MD

Dr. John Cannell is founder of the Vitamin D Council. He has written many peer-reviewed papers on vitamin D and speaks frequently across the United States on the subject. Dr. Cannell holds an M.D. and has served the medical field as a general practitioner, emergency physician, and psychiatrist.

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Vitamin D supplementation improves autism in children, according to new study

A recent randomized controlled trial discovered that daily vitamin D supplementation improved autism symptoms among children.

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