Premieres on PBS Wednesday, December 30, 2015, 9:00-11:00 p.m. ET.
In the early 20th century, Dr. John Harvey Kellogg attracted health-seekers to his famed Sanitarium in Battle Creek, Michigan. To combat what he considered the toxic effects of protein foods like meat, he prescribed all-grape diets and yogurt enemas. And to give Americans a carbohydrate-based alternative to the bacon-and-egg breakfast, he and his brother Will invented the flaked cereal.