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Importance of Proteins - Know the Facts |
Article Submitted by: peterson bran
Thursday, 25 June 2009
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Protein is found in plant and animal sources. Animal proteins include meat, poultry, fish, eggs, and dairy products. Plant proteins include beans, nuts, breads and cereals. Tissue proteins are continually broken down, releasing their constituent amino acids into the "free pool", which is located in body tissues and the blood. For example, half of your total body protein is broken down and replaced every 150 days. Amino acids absorbed from food and dispensable amino acids made in the body from nitrogen and carbohydrate can also enter the free pool. Once in the pool, amino acids have four fates. They can be used to build new proteins, they can be oxidized to produce energy and they can be converted in glucose via gluconeogenesis or they can converted into fatty acids. During energy production, the nitrogen part of the protein molecule is excreted in urine, or possibly in sweat. For most high protein diets means low carbohydrates. Even body builders are not advised to go on a low carbohydrate diet as they have high protein requirements. Protein are the main source of muscle building, cell replenish and maintaining a good level of blood. In other words, proteins are the main building block of a body. And those who are interested in high protein diet need to do it carefully to avoid loss of carbs. Nutritionists the world over recommend the four traditional food groups in the proper proportion as they supply just the right amounts of nutrients required for increasing metabolism, performing muscle and electrolyte maintenance, repairing cells and producing the energy required to sustain these bodily functions. But out of which some of the amino acids cannot be synthesized by the body and are therefore are required to be taken as dietary amino acid supplements if you wish to take them to stimulate your hair growth. The amino acids: Phenylalanine, Valine, Tryptophan, Threonine, Isoleucine, Methionine, Histidine Arginine, Lysine Leucine are considered to be essential amino acids. But the distinction between essential and non-essential amino acids is not very clear, as some amino acids can be produced from others. For example the sulfur containing amino acids, methionine and homocysteine can be converted into each other but neither can be synthesized de novo in humans. There are several reasons why a high protein intake stimulates the fat burning process. One of the reasons to this is that the balance of hormones is changed when you increase the protein in your diet. Among these hormones we find IGF-1 growth hormone and glucagon, those have great fat burning abilities. First and foremost it is the increased levels of glucagon that, for short, increase the release of fat from your fat cells which raise the potential for burning fat. Amino acids can be broken down to essential and non-essential amino acids. The human body is able to manufacture 11 out of the 20 amino acids; these are called "Non essential". The remaining 9 amino acids are called "Essential" as the body needs to be provided with them through food. Article Source: http://www.ArticleBlast.com |
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