In an article for Sequence Inc., Dr. Harriet Hall criticized Isagenix products, maintaining that they don't work and that there is no medical evidence showing that they do. Dr. Nicholas Messina defended the products, and a much-discussed clinical trial, in commentary he wrote for IsagenixHealth.net.Continue Reading
Isagenix markets a cleansing and fat-burning system that claims to reduce appetite, increase energy and maintain lean muscle mass. Many criticisms of the Isagenix products refer to Dr. Hall's comments on the Science-Based Medicine website. Initially Dr. Hall noted that Isagenix products weren't clinically tested. After a clinical study was published, she criticized the methodology and the fact that it was sponsor-funded.
Dr. Hall's main critiques from her "Fraud Files" article on SequenceInc.com are that the clinical trial and peer-review process are flawed, especially as the study didn't control participant food intake, that some of the herbal ingredients are harmful, and that although the products claim to be caffeine-free, they contain green tea, which has caffeine. In a column on CSIcop.org, she noted that the vitamins in Isagenix products may have no benefits or may be harmful in such high doses.
Dr. Nicholas Messina supports the methodology and results of the Isagenix clinical trial. His review of the clinical trial on IsagenixHealth.net maintains that it was well designed to evaluate how Isagenix works for weight loss, and the results are valid. Dr. Messina notes that Isagenix users in the trial lost weight and lowered their cardiovascular risks. In his commentary, he also indicated that he found similar results with his own patients using Isagenix.Learn more about Medications & Vitamins