Definition Of Nutrition
The term nutrition is used to define the process in which you consume food or nourishing liquids. These are then digested and absorbed by the body and used for health and growth. But it has been seen that most people are not bothered about nourishing and cleansing our body. Hence they are continuously congesting and destroying it by eating the wrong combination of food along with consuming foods without control and taking insufficient water rich food.
Since the human body contains chemical compounds including water, carbohydrates like sugar, starch, and fiber along with amino acids, fatty acids and nucleic acids, nutrition is vital for the body. The compounds also contain various elements like hydrogen, carbon, oxygen, nitrogen, phosphorus, magnesium, calcium, iron, zinc, manganese, and so on. All these chemical compounds and elements exist in various forms and combinations in the body and they are forming hormones, vitamins and phospholipids.
The functioning of the human body is based on different elements and compounds which are digested, absorbed, and circulated through the bloodstream. These are derived through the nutrition that food provides us and their digested forms are used to feed the cells of the body. Except for the born fetus, the digestive system is always involved in the nutritional process and most of the adults excrete about seven liters of digestive juices. These juices enter the lumen of the digestive tract and then break chemical bonds and modulate their conformations and energy states.
Even though many of these molecules are absorbed into the bloodstream in their unchanged modes the digestive processes release them from the surrounding substance of foods. Any unabsorbed matter in the body is eliminated along with some waste products of metabolism.
The body needs adequate nutrition to provide energy and keep you vibrant. This energy is required in the daily physical and mental activities and through digestion; the food we consume is broken into smaller molecules. These include glucose, amino acids, fats and vitamins, which are forms of nutrients that provide you energy. Also the carbohydrates we consume are broken down into glucose and is stored by the body or reserved for later use. But it should be remembered that excess carbohydrates and fat result in obesity and other health complications.
Apart from these uses nutrition helps in producing and keeping the cells alive and repairs body tissues. These cells include eggs, bones, fat, muscle, brain, nerve and blood cells, which have functions to perform. If the body loses some cells, then it also needs energy to makes new ones. Nutrients, which are traveling up the bloodstream prevent damage and help to keep these cells alive and in producing new ones too.
Foods like apples and some other fruits contain nutrients like flavonoids, fructose, dietary fiber and anti-oxidants, which are required for keeping the internal system healthy and thus should be consumed in larger quantities. The fresh fruits are nutritious because they are rich in water and they help to keep the system clean. Basically all individuals require a balanced diet to keep their bodies in good health, which is very essential.