The study, published in Toxicology in Vitro showed that even at relatively low concentrations the amino acid L-norvaline could make cells unhealthy and eventually kill them.
Proteins in our diet contain amino acids that are released in our gut and then used by our bodies to build new proteins. L-norvaline is one of hundreds of amino acids that are not normally used to make proteins in humans. In recent years the popularity of dietary supplements to enhance body strength and muscle performance has meant that many now contain lots of unusual amino acids that can do harm.
Author - Study - Kate - Samardzic - Consumption
Lead author of the study Kate Samardzic said that the highest consumption of amino acids is among athletes and bodybuilders.
"Protein requirements are higher in very active individuals and proteins are considered to improve and increase performance. The demand for amino acids in supplements has expanded but in addition to the normal protein-building amino acids other 'non-protein' amino acids are being taken," the UTS School of Life Sciences PhD candidate said.
"Some non-protein amino...
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