For years, we've been told that losing weight is simple: eat fewer calories than you burn. But Dr. Greger's comprehensive research shows it's much more complex. The types of foods you eat and when you eat them matter far more than just counting calories. One study showed that people who ate more fruits and vegetables naturally consumed 300-400 fewer calories each day without trying to restrict portions - demonstrating how whole plant foods can help you feel satisfied while naturally reducing calorie intake