As a legally incorporated U.S. company as of 2015, the Health Sciences Institute is overseen by an advisory panel consisting of several medical doctors and people with doctorates, according to the company's website. HSI partners with and markets NorthStar Nutritionals, and the business is based in Baltimore, Maryland.
A disclaimer on the HSI website says to consult licensed medical professionals in order to receive proper medical advice, and that any claims made by the company are for informational purposes only. Not all supplements sold by its partner, NorthStar Nutritionals, have been evaluated by the U.S. Food and Drug Administration.
HSI was founded in 1997, and Jenny Thompson has been the company's director since 1998. The advisory panel at HSI includes several medical doctors and health care professionals. Allan Spreen, M.D., runs the research team at NorthStar Nutritionals, as of 2015. Spreen also advises the Metabolic Research Center and Discovery Health Channel. Michael Rosenbaum, M.D., works at the Preventive Medical Center of Marin in California. Rosenbaum has been a medical doctor since the late 1960s and is a past president of the Orthomolecular Health Medical Society. Ann Louise Gittleman, Ph.D., C.N.S., has written more than 30 books, including the New York Times bestseller "Fat Flush Plan." Gittleman has a Ph.D. in holistic nutrition, is board-certified by the American College of Nutrition, and holds an advisory position on the board of the Nutritional Therapy Association, as of 2015.