3. Mehmet Oz - Medical Doctor

Mehmet Oz, often known as Dr. Oz, is a prominent American cardiothoracic surgeon, author, and television personality. He gained fame as a health expert on "The Oprah Winfrey Show," leading to his own program, "The Dr. Oz Show," where he shares medical advice and wellness tips. Oz is known for promoting various health and diet trends, though some of his views have sparked controversy among medical professionals. He attended Harvard University for both undergraduate and medical school and has published numerous books on health and wellness. His influence extends into public discussions on health-related topics.