L-Cysteine

Product  Details

Description

L-cysteine is a semi-essential amino acid found naturally in the human body. Abundant in protein-rich foods, L-cysteine is also sold as a dietary supplement, sometimes just called cysteine.

 Cysteine, along with the amino acids glutamine and glycine, is a building block of the powerful antioxidant glutathione. The body can make cysteine from the amino acids methionine and serine, however, if these are in short supply, supplementing with L-cysteine can fill the gaps.

L-cysteine is found in many foods including meat, dairy products, eggs, nuts, seeds, and legumes. It is also abundant in protein powders used in weight-loss and body-building shakes and smoothies.

The amino acid may provide a variety of health benefits. In alternative medicine, L-cysteine is touted as a natural treatment for:

• Angina

• Cardiovascular disease

• Chronic bronchitis

• Diabetes

• Flu

• Inflammation

• Inflammatory bowel disease

• Osteoarthritis

• 
  

In addition, it is said to enhance lung health in people with chronic obstructive pulmonary disease (COPD), and can also help prevent colon cancer, boost sports performance, and promote detox.Despite the many purported health uses for L-cysteine, a 2018 literature review published the journal Molecules noted the amino acid's effectiveness is still unclear and further research is needed.