Nutrition is the sum total of the processes involved in the taking in and the utilization of food substances by which growth, repair and maintenance of the body are accomplished. People decide what and when to eat in highly personal ways, often based on cultural, behavioral or social motives. When you begin to understand the relationship of vitamins and minerals in the foods you eat, and how they play a role in your overall health you will be on the way to understand about the nutrition.
In science and human medicine, nutrition is the science or practice of consuming and utilizing foods. Nutritional science studies how the body breaks food down and repairs and creates cells and tissues. Basically, nutrition consists of diet (what you take in) and metabolism (what happens to it after it enters your body). Nutrition also involves identifying how certain diseases, conditions or problems may be caused by dietary factors, such as poor diet, food allergies, metabolic diseases, etc.
Nutrition is present in all processes of life. Right from the moment the sperm fertilizes an egg, through fetal development, to the birth, human growth, maturity, old age, and eventual death. Even after death the human body serves as nutrition for other organisms. Anything that involves life and chemical or biochemical movement has nutrition at its core.
For a healthy life, all we need a proper and balanced diet. There are six major classes of nutrients: carbohydrates, fats, minerals, protein, vitamins, and water. A balanced combination of all these nutrients is the source of right and sufficient nutrition. A balanced diet which your body requires for the right nutrition should contain all the nutrients. However, the amount and quantity of nutrients in the diet can vary from person to person. If you do not have proper nutrition, your body will lack one or more essential nutrients and will not be able to function normally. To function properly, your body must take in adequate amounts of several vitamins and minerals as well as of proteins, fats, and carbohydrates. If you are not getting adequate amounts of some required nutrient, your body will develop symptoms of deficiency. For example deficiency of calcium or vitamin D will affect the bones, deficiency of protein deficiency causes wasting of the muscles and deficiency of vitamin A and E will affect skin and hair.
Probably, nutrition is the most discussed topic of science because it is related to basic health of all the humans. There are millions of articles on nutrition are written. These articles on nutrition have the complete information about nutrition. What is nutrition, how can we get right nutrition, what are nutrients, what is proper nutrition or any thing related to nutrition can be found in the articles on nutrition. There are a large number of articles on nutrition, from newspapers, medical journals, magazines, science books and off course internet, which are guiding people and educating them about nutrition and nutritional facts. They also provide all the statistics and data regarded to nutrition, if someone requires.