Dietary manipulation refers to the process of altering or adjusting an individual's diet in order to achieve specific health outcomes. This can involve changes such as increasing or decreasing certain food groups, nutrients, or macronutrient ratios (such as carbohydrates, proteins and fats) within a person’s daily caloric intake. The goal of dietary manipulation is to improve overall health by addressing specific nutritional deficiencies, managing chronic conditions or promoting optimal body composition through changes in food choices and eating habits.