Dr. Marc Sorenson is a doctor of education with a background in health and fitness.
He and his wife, Vicki, founded and developed National Institute of Fitness in 1974.
[2] Dr. Sorenson has published a scientific paper in the journal Dermatoendocrinology, on Vitamin D and erectile dysfunction (ED), theorizing that lack of vitamin D or sunlight could be a contributor to ED.
[3] He was also co-author of a scientific paper on vitamin D and athletics,[4] published in Science and Medicine in Exercise and Sports, and coauthored another paper in the Journal of Sexual Medicine regarding ED, chronic periodontitis and vitamin D.[5] His book Megahealth was a selection of the Literary Guild, Doubleday Book Club and Doubleday Health Book Club.
He has written several other books, including an English vocabulary builder, “I Want to have words with you!”[8] He was also named a founding director of the Breast Cancer Natural Prevention Foundation (BCNPF).