Essential amino acids

Essential Amino Acids are a group of amino acids that cannot be synthesized by the body and must be obtained from the diet. They are essential for the body's normal growth and development, and are required for the synthesis of proteins.

Overview

There are nine essential amino acids: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine. These amino acids are necessary for the body to function properly, and a deficiency in any of them can lead to health problems.

Functions

Essential amino acids play a variety of roles in the body. They are involved in the synthesis of proteins, which are necessary for the growth and repair of tissues. They also play a role in the production of enzymes, which are proteins that speed up chemical reactions in the body. In addition, some essential amino acids are involved in the production of hormones, which are chemicals that regulate various bodily functions.

Sources

Essential amino acids can be obtained from a variety of foods. Animal-based foods, such as meat, eggs, and dairy products, are complete sources of essential amino acids. Plant-based foods, such as grains, legumes, and nuts, also contain essential amino acids, but they are often incomplete sources, meaning they do not contain all nine essential amino acids in the necessary proportions. Therefore, it is important for vegetarians and vegans to consume a variety of plant-based foods to ensure they get all the essential amino acids they need.

Deficiency

A deficiency in essential amino acids can lead to a variety of health problems. Symptoms of deficiency can include fatigue, muscle weakness, and poor growth and development in children. In severe cases, a deficiency can lead to a condition called kwashiorkor, which is characterized by swelling, skin changes, and growth failure.

See Also

• Protein
• Amino Acids
• Dietary Supplements

Essential amino acids Resources
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