Dr. Joseph Mercola is the founder of Mercola.com. A family physician, best-selling author, and recipient of multiple awards in the field of natural health, as well as primary author of the recently published peer-reviewed paper, “Evidence Regarding Vitamin D and Risk of COVID-19 and Its Severity,” Dr. Mercola’s vision is to change the modern health paradigm by providing people with a valuable resource to help them take control of their health.