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.

Ronnie Cummins was the cofounder and director of the Organic Consumers Association (OCA), a nonprofit, US-based network of more than two million consumers dedicated to safeguarding organic standards and promoting a healthy, just, and regenerative system of food, farming, and commerce. Cummins also served on the steering committee of Regeneration International and OCA's Mexican affiliate, Vía Orgánica. He was the coauthor of The Truth About COVID-19 and author of Grassroots Rising and Genetically Engineered Food.