The ancient pyramids may be full of intrigue, but it's no mystery that today's Food Guide Pyramid can help you adopt a healthy eating style. It's all a matter of your food choices over time. When eaten in moderation, all foods can fit into your diet. Pyramid Pointers Follow the proportions of the pyramid. The largest categories are grains, vegetables and fruits. Choose lower-fat options from the smaller milk and meat categories. Size up recipes according to food groups. A burrito has ingredients from: grain group (tortilla) vegetable group (lettuce and tomato) meat group (ground meat or beans) dairy group (cheese)