In the NutritionFacts.org video below, Dr. Michael Greger explores the link between obesity and the cancer-causing agent IGF-1* (insulin-like growth factor) produced by fat cells. Children and adults with a higher body mass index (BMI) typically have higher levels of IGF-1. We’ve also summarized his main points below. Studies suggest those who eat a vegan diet … Continue reading What’s the Best Way to Lower Levels of IGF-1, the Cancer-Promoting Growth Hormone?