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| 1. |
Explain nutrition in human beings in detail. |
| Answer» \xa0Nutrients are the substances in food that maintain the body and make it work. Most of what one eats is made up of carbohydrates, proteins, and fats. Nutrients needed in smaller amounts, but still vital, are vitamins and minerals. Also on the list are fiber and water. Our diet should comprise a mix of foods that supply all necessary nutrients in the right amounts. Such a diet is called a balanced diet.Carbohydrates: Complex carbohydrates, particularly starch, are found in foods such as pasta, bread, rice potatoes, and cereals.Fiber: This collection of stringy, indigestible substances is found in plant foods such as broccoli, beans, and bananas.\xa0Vitamins and Minerals: vitamins and minerals are nonetheless essential for growth and good health. Most vitamins come from fresh fruit and vegetables, with some also found in fish, meat, dairy, and eggs. Minerals, such as calcium and iron, also help the body perform optimally. The best sources are vegetables, dairy, meat, and some fish.Fats: Dairy food, meat, seeds, and nuts all supply fats, as do vegetable oils. Fat is digested into fatty acids, which are used as an energy source and to make cell membranes.Proteins: Rich sources of proteins are fish, lean meat, poultry, and beans. Once digested, proteins supply the body with amino acids.Water: Around 50 – 70 percent of our body is made of water. Therefore this amount should always be maintained in the body. | |