Where are you in Understanding the Obesity Crisis? The secondary area to examine is the role of fat, sugar, and current solutions. Over the past few decades, as obesity rates began to climb, many started questioning why this was happening and what factors were driving the increase in weight-related issues. This led to a major debate in the mid-20th century, known as the “Keys vs. Yudkin” debate. Two Theories in Understanding the Obesity Crisis Ancel Keys, an American physiologist and nutritionist, was one side of the debate. He believed that fat was the main culprit behind the rise in obesity and other health issues. His stance was that…