Gwyneth Paltrow's Controversial Wellness Trends Critiqued.

Gwyneth Paltrow has revealed on a podcast that she has tried rectal ozone therapy, which involves putting unregulated, experimental ozone up one's butt. While some proponents claim that administering the gas helps to oxygenate the body and boost the immune system, the FDA regards ozone as a "toxic gas with no known useful medical application in specific, adjunctive, or preventive therapy." The FDA has also warned that ozone can cause "undesirable physiological effects on the central nervous system, heart, and vision," while "the predominant physiological effect of ozone is primary irritation of the mucous membranes."