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Nutrients Are Essential Substances

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The supply of essential nutrients from food to the body for life sustenance is known as nutrition. It’s also known as the connection between human nutrition and health. It is possible to have good or bad nutrition. Nutrition is essential for body organ development and function, as well as body growth, reproduction, and maintenance. A good diet is necessary for a body to reach its maximum production efficiency and required activity level. A healthy diet aids the body’s ability to repair injured and damaged cells, as well as resist infections and diseases. Proteins, fats, vitamins, carbohydrates, minerals, and water are the major essential nutrients required by the body for proper growth. To maintain a healthy body, the supply of the named nutrients should be proportionate. A healthy diet consists of a balanced amount of these nutrients in the proper proportions. When it comes to consuming nutrients, the words “balanced” and “right proportions” come to mind. ‘Optimum Nutrition’ is defined as eating the right amount of nutrients at the right time to achieve the best possible performance and a long life in good health.


Carbohydrates are the body’s primary energy source. Carbohydrates are present in the majority of the foods consumed. Bread, rice, potatoes, spaghetti, fruits, candy, juices, and vegetables all contain them. Starch is present in these foods. Carbohydrates are broken down into smaller molecules by enzymes found in saliva, pancreatic juices, and the lining of the intestines. Saliva and pancreatic juice break down the starch in carbohydrates into maltose. Finally, the maltose is broken down into glucose in the lining of the intestines, where it is absorbed into the bloodstream and transported to the liver for use as an energy source for the body. The body uses proteins to repair damaged or injured body tissues. Proteins can be found in a variety of foods, including eggs, meat, milk, and beans. These foods contain large molecules that are digested by enzymes before being used to repair and develop body tissue. In the stomach, the protein is broken down. In the small intestine, the protein digestion is completed. The proteins are broken down in the small intestines and absorbed into the bloodstream, where they are distributed throughout the body to build cells. Fats are an excellent source of energy. Fats from foods such as butter are digested and dissolved in the intestines’ watery substance. These fats are dissolved in water by bile acids produced by the liver, and then enzymes break down the dissolved fats into smaller molecules for blood transport to storage depots throughout the body.


Vitamins are substances that the body requires in order to grow and develop normally. Thirteen vitamins are required by the human body. A, B, C, D, E, and K are the vitamins. Vitamins D and K are found in foods, but the body can also produce them. Vegetables and animal products are both good sources of these vitamins. Each vitamin performs a specific function in the body. Vitamin deficiency causes deficiency diseases, such as rickets, which is caused by a vitamin D deficiency. Because the levels of vitamins vary greatly in different food types, an optimal intake of essential vitamins can be obtained by eating a well-balanced diet that includes a variety of foods. In the small intestine cavity, water and salt are dissolved. The majority of the water and salts in our bodies come from the fluids and foods we eat, as well as the digestive juices we secrete. Water cannot be stored in the human body. This is why humans require water for metabolic processes on a daily basis. Water is the primary component of blood, urine, digestive juices, stools, and sweat. The amount of water required is determined by the metabolic rate and level of activity.


Children, teenagers, and older adults are the three major age groups. Dietary requirements differ between the groups. Nutrients are required for healthy organ growth, brain development, and body development in children. Children require certain nutrients for the development of their bones, brains, strong organs, and overall health. Teenagers, on the other hand, are extremely active in all areas of life. They participate in educational, sporting, and recreational activities. Because their production is higher and requires more energy, they require a more nutritious diet than children. Among the age groups, the older adult is the most active. These people belong to the working class, which means they work all day and spend the rest of their time doing things like sports. This age group’s diet should include plenty of fluids, vitamins, and minerals while also taking energy requirements into account.


Nutrition is the ingestion of essential nutrients and adequate amounts of water by the body in order for it to perform at its best. To avoid deficiencies that lead to deficiency diseases and other chronic illnesses, the diet should be well-balanced. Given the variety of foods available, it’s critical to understand dietary requirements in relation to the body’s activity levels. This ensures that the diet meets the energy requirements of the body. People of various ages require different diets due to the fact that their dietary needs vary depending on the activities they engage in. Good nutrition ensures that the body receives the nutrients it needs and that the nutrients are replaced in a balanced manner. Excess nutrient intake should also be avoided, as this can result in severe poisoning. To maintain a healthy diet, a person must consume a well-balanced diet on a regular basis.

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