About Amino Acids
Amino Acids are essential nutrients for our healthy lifeAmino Acids are basic substances for our body as substrate supporting our healthy life.
Each Amino Acid is obtained from digestion of dietary protein that is known as one of the three major nutrients as well as carbohydrates and fats.
Amino Acids are sources for the body proteins productionA normal adult, who weights 60kg, has around 10kg of the body proteins composing of Amino Acids. Our body proteins build up the muscles and other structural components of inside organs. Collagen, that is basic component for the bones and the tendon, skin and hair are particular forms of the body protein. Amino Acids also make up physiologically functioning proteins such as enzymes, hormones, hemoglobin in the red blood cell and immune antibody.
How do we obtain Amino Acids from food?In the digestion procedure, first break down of the dietary protein into Amino Acids occur in the alimentary tract, then absorbed Amino Acids from the small intestines are reassembled into the body protein in our body.
Food Protein breaks down into Amino Acids by enzymes in intestines and reassemble into body protein. Surplus amino acids will be brought outside by urine:
Daily intake of Amino Acids is importantThe body protein is constantly being renewed to maintain our life and activity. Amino Acids from the dietary protein are to form body protein equivalent to its degradation. Some scientific studies shows that this body protein turnover rate (half of our body protein renewal) takes more than a month in average. We need certain amount of Amino Acids intake everyday due to nutritional balance depending upon life style. People, who are more active, needs more dietary proteins and adequate supplementation of Amino Acids occasionally.
Various kinds of daily food can provide amino acids:
Bread, Beef Steaks, Rice, Noodles, Eggs, Milk
Amino Acids circulate in our bodyThe blood stream of the portal vein carries Amino Acids from the small intestines to the liver. The alimentary organs including the liver monitors the pattern and the amount of absorbed Amino Acids and controls these metabolism according to the maintenance of the Amino Acids homeostasis and enough supply for body needs.
Amino Acids are delivered to the various parts of the body by blood stream and used in individual cell as sources for body proteins and energy. On the other hand, human body proteins break down into Amino Acids and reproduce them together with absorbed Amino Acids from food digests. Finally, excessively remaining Amino Acids in blood and tissues will be catabolized into urea in the liver and then excreted in urine.
The circulation of Amino Acids in human body
Importance of daily diet compositionThe balanced intake of each nutrient through the daily meal is required fro our health. We mainly get Amino Acids from dietary proteins digestion. Additional intake of certain Amino Acids to the ordinary dietary protein improves either the recovery from fatigue or other tolerance to prevent from any diseases in case of overloading of exercise or work, than expected.
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