The document discusses the "Eat More, Weigh Less" diet, which focuses on eating foods with a higher "Eat More Index" (EMI) number. The EMI number represents the number of pounds it takes to consume 2500 daily calories from that food. Eating more foods with a higher EMI fills you up with fewer calories, promoting automatic weight loss. The diet aims to duplicate the eating patterns of slim, healthy populations by emphasizing foods that satisfy with fewer calories. The goal is to improve health and treat diet-related diseases, with weight loss seen as a byproduct of following a nutritious diet.