Nutrition Why your body needs nutritious food?

Why You Need Nutritious Food Calories - are units of heat that measure the energy used by the body and the energy that foods supply to the body. - energy needed for everything you do from exercising to studying. Nutrients – substances in food that your body needs. - gives you energy. - building new tissues and repairing cells. - helping your body’s processes and systems run smoothly. Nutrition – is the process of using food and its substances to help your body have energy, grow, develop, and work properly. – Good nutrition is one of the main factors in building and maintaining good health.

Why You Need Nutritious Food Appetite – is the psychological desire for food. - this may be triggered by the smell, sight, or texture of food. Hunger – is the physical need for food. - Appetite is different from hunger - when one is hunger, your brain sends a signal to find food. Nutrient deficiency – a shortage of a nutrient. - when you do not get enough of a particular nutrient.

Why You Need Nutritious Food Macronutrients - any very large complex molecule; found only in plants and animals Macronutrients are nutrients that provide calories or energy. Nutrients are substances needed for growth, metabolism, and for other body functions. Since “macro” means large, macronutrients are nutrients needed in large amounts. There are three macronutrients: Carbohydrate Protein Fat

Why You Need Nutritious Food Micronutrients are what are commonly referred to as "vitamins and minerals." Micronutrients are different from macronutrients (like carbohydrates, protein and fat) because they are necessary only in very tiny amounts.

Why You Need Nutritious Food Phytonutrients - Definition: a bioactive plant- derived compound (as resveratrol or sulforaphane) associated with positive health effects. These are called phytonutrients or phytochemicals."Phyto" refers to the Greek word for plant. These chemicals help protect plants from germs, fungi, bugs, and other threats.