Nutrition is the science of how food and drink affect our health. It studies the nutrients in foods, how the body uses them for energy, growth, and repair, and how diet influences overall well-being. Nutrients include carbohydrates, proteins, fats, vitamins, minerals, fiber, and water—all of which are essential for different body functions. Why Nutrition Is Important: Provides Energy: Carbohydrates, proteins, and fats supply the fuel our bodies need to move, work, and think. Supports Growth & Repair: Proteins and minerals help build and repair tissues, muscles, and organs. Enhances Mental Health: Good nutrition supports brain health, improving mood, memory, and focus. Maintains Overall Balance: Proper hydration and nutrient intake regulate body processes like digestion, circulation, and hormone balance. In simple terms, nutrition is the foundation of good health—what we eat directly shapes our energy, strength, and longevity. Would you like me to make this into a short student-friendly definition, or a detailed professional-style explanation. For more information. Email= info.stphysiotherapy@gmail.com