Ken Berry, MD, is an author, speaker, and dedicated family physician practicing near Nashville, Tennessee. For over two decades, he has been committed to helping patients overcome obesity, insulin resistance, and type 2 diabetes. His mission is to empower people with the knowledge and tools to reclaim their health through the Proper Human Diet. Dr. Berry is board certified in family medicine and has been awarded the degree of Fellow by the American Academy of Family Physicians. He lives with his wife, Neisha, and their children and many animals on their farm in rural Tennessee.

Kim Howerton is a certified health coach, teacher, speaker, and author. Her motivation to become a health coach was fueled by her own experience of ill health, which included polycystic ovarian condition, binge eating disorder, major depressive disorder, hypothyroidism, morbid obesity (now termed level 3 obesity), metabolic dysfunction, gastritis, IBS, and autoimmune disease. As age forty loomed, she knew she needed to get serious about her health, and over the next several years she devoted herself to getting educated about what it means to become and remain a healthy human. After transforming herself into a person in good health, she knew that nothing mattered more than sharing what she'd learned with others who felt similarly hopeless. She teaches her clients that relentless self-advocacy and self-improvement can turn the tide on the myriad health conditions plaguing society. Kim lives with her partner, Eric, in Berkeley, CA.