Biography: Dr. Bret Scher is a board certified cardiologist and lipidologist practicing in San Diego and licensed to practice in seven states. He’s the full-time Medical Director for DietDoctor.com, writes medical blogs, reviews guides and news stories for medical accuracy and hosts The Diet Doctor Podcast. Dr. Scher’s main focus is on preventing and reversing heart disease naturally rather than putting patients on medication and performing surgery. When he started his own preventative wellness center he was introduced to the whole low-carb world. Being a bit skeptical at first, he was soon convinced by the benefits of a low-carb diet.