Nutrition

Nutrition is the process by which living organisms obtain and utilize food for growth, maintenance, and overall health. It encompasses the ingestion, digestion, absorption, metabolism, and excretion of nutrients, which are substances required for energy, cellular repair, and the proper functioning of bodily systems. Key components of nutrition include macronutrients (carbohydrates, proteins, and fats) and micronutrients (vitamins and minerals), each playing vital roles in various physiological processes. Good nutrition is essential for preventing malnutrition and chronic diseases, promoting physical and mental well-being, and supporting optimal development throughout the lifespan. Nutritional science studies these aspects in order to understand how dietary choices affect health outcomes and to provide guidelines for healthy eating practices.