L-cysteine, with the molecular formula C6H12N2O4S2, is a naturally occurring amino acid that is classified as a protein amino acid. Although it has reported health benefits and deficiencies are reported to cause negative effects, the substance is naturally occurring in the body, making supplements unnecessary. One of the main functions of it is the promotion of stomach lining health and also the correction of situations where the absorption of essential nutrients from food sources takes place.
Although most people do not require any additional l-cysteine in the body, there are exceptions. Infants may sometimes need it in order to absorb nutrients from food properly. Elderly persons may need the amino acid for the same reason. When any type of ongoing disease that impacts the ability to metabolize nutrients properly, there may be a need to use a supplement in order to provide a higher quality of life.
Benefits
Some of the positive functions may include building muscle mass, protecting the stomach lining to improve digestion, and acting as an antioxidant. Other reported benefits from this amino acid are counteracting acetaminophen poisoning and stimulating the immune system.
Along with other amino acids, which are often called the building blocks of protein, l-cysteine may play a role in increasing muscle mass in the body. For this reason, they are used as supplements by bodybuilders and other fitness enthusiasts who want to increase their size or strength. It is also reported to have benefits for those who suffer from chronic lung or respiratory diseases because it helps to break down and thin mucus in the body.
Food Sources
Chicken, beef and pork are all efficient sources of cysteine. Even many varieties of processed luncheon meats contain this amino acid. Cooking does not destroy the presence of cysteine and in some cases may even help to enhance the absorption.
The acid can also be obtained from eggs and milk. Products such as ricotta and cottage cheese are also good sources. Plain yogurt and whey protein products also provide cysteine in a natural form. Onions, garlic, and broccoli are just a few of the vegetables that contain cysteine and provide good dietary resources when there is a need to augment l-cysteine(CAS:56-89-3) levels in the body.
When an l-cysteine supplement is desirable for some reason, it is possible to purchase the product at a number of retail outlets. In addition to vitamin shops and health food stores, it is also possible to purchase the supplement at a number of online herbal stores and discount vitamin suppliers.
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