Doctor Sergey Kalitenko. Secrets of Vitamin D

Doctor Sergey Kalitenko has more than 30 years of experience of working as family physician in the former Soviet Union and in the United States of America. He is well known by his incredible attention to details while diagnosing patients and determining their treatment plan. Dr. Sergey Kalintenko helped thousands of patients - treating them in his private practice and while working in hospitals.

In his video interview with journalist Ari Kagan, Dr. Kalitenko is sharing his opinion about the effectiveness of Vitamin D and is disclosing many secrets of this very important vitamin for our health.