Nutrition is the process of consuming food and converting it into energy and other vital nutrients needed for life. These elements provide the body with food and protect it from major diseases. Nutrients are food molecules that all organisms need to produce energy, grow, develop and reproduce. They are digested and then broken down into basic parts for use by the body. Nutrients can be divided into two main categories: macronutrients and micronutrients.
Macronutrients include carbohydrates, proteins and fats, while micronutrients are vitamins and minerals. Nutrition is defined as the process of eating food to carry out different functions of the organism necessary for survival. There are two main types of nutrition: autotrophic and heterotrophic. Autotrophic nutrition occurs when an organism can prepare its own food, such as plants. Organic compounds include carbohydrates, proteins, fats and vitamins, while inorganic compounds contain minerals and water.
Parasitic nutrition mode occurs when an organism obtains its nutrition from other living organisms. Heterotrophic nutrition is a type of nutrition in which an organism depends on other organisms for food. Food is any edible substance that provides the body with the necessary nutrients for growth, nutrition, energy production and tissue renewal. An example of a low-nutritious food is hard candy, which contains no more nutrients than some simple carbohydrates from sugar. Nutritious foods are foods that are especially dense in one or more necessary nutrients, such as eggs, fish, liver, avocado, green vegetables, beans and legumes. Nutrition helps to receive and use the materials necessary for the maintenance of its function and for the growth and renewal of its components.
Chemotrophic nutrition is also part of this mode of nutrition, in which the body synthesizes organic foods by chemical reaction. This type of nutrition is exhibited by amoeba, which absorbs complex substances and converts them into simpler substances.
