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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.

Author Archives: John Cannell, MD

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Clinical trial finds vitamin D may reduce severity of heart failure

A new clinical trial found that heart failure patients who received vitamin D on a weekly basis reduced the severity of their heart failure.

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