What are proximal principles of food?

1. Water: Water is the most abundant nutrient in foods and makes up 60-90% of most foods. It is essential for many bodily functions, including regulating body temperature, transporting nutrients and oxygen to cells, and removing waste products.

2. Protein: Protein is essential for building and repairing tissues, and it also plays a role in many biological processes such as the production of hormones, enzymes, and immune cells.

3. Fat: Fat is essential for storage of energy, insulation, and the absorption of vitamins A, D, E, and K.

4. Carbohydrates: Carbohydrates are the body's main source of energy, and they also provide dietary fiber, which is important for gut health.

5. Vitamins: Vitamins are micronutrients that are essential for many bodily functions such as growth, energy metabolism, and immunity.

6. Minerals: Minerals are micronutrients that are essential for many bodily functions such as bone health, muscle function, and fluid balance.

These six proximal principles of food are also commonly called the macronutrients and micronutrients in foods to provide the energy needed on a given daily intake.