Here's the No. 1 breakfast mistake Americans make every morning, says oncologist and longevity expert

Americans can spend so much money trying to eat healthier, yet breakfast remains one of the most misunderstood meals of the day.

Here's the No. 1 breakfast mistake Americans make every morning, says oncologist and longevity expert. Americans can spend so much money trying to eat healthier, yet breakfast remains one of the most misunderstood meals of the day. Many foods marketed as healthy breakfasts are often packed with refined carbohydrates and added sugars that can spike blood sugar, leaving people hungrier just a few hours later. As a Harvard-trained oncologist and world leader in health policy, I've spent decades studying what actually improves health outcomes. And research on blood sugar regulation and metabolic health has repeatedly found that breakfasts centered on protein, fiber and minimally processed foods are associated with better glucose control, greater satiety and lower long-term risk of type 2 diabetes. Breakfast cereals were originally created dur...