A diet, or regimen, refers to a specific plan of eating designed to achieve certain health goals, such as weight loss, improved nutrition, or managing medical conditions. Diets can vary widely, including options like Mediterranean, Keto, or Paleo, each with its own set of guidelines regarding food choices and portion sizes. Many people adopt diets to enhance their overall well-being or to address specific health issues, such as diabetes or high cholesterol. It's important to choose a diet that is balanced and sustainable, ensuring it provides essential nutrients while aligning with individual lifestyle preferences and health needs.