The term "diet pyramids" refers to the visual representation of recommended food groups and portion sizes for a healthy diet. This concept was popularized by the USDA with the introduction of the Food Guide Pyramid in 1992. Over the years, different variations of the pyramid have emerged, including the MyPlate model and the Mediterranean diet pyramid. Synonyms for diet pyramids include nutrition guides, dietary patterns, healthy eating plans, food pyramids, and meal guidelines. All of these terms refer to the same basic idea: a structured approach to eating that emphasizes balanced nutrition and portion control. By following these guidelines, individuals can promote good health and reduce the risk of chronic diseases.