Mice Survived Deadly Inflammation Thanks to a Common Amino Acid, Study Finds
Researchers at the Salk Institute have uncovered a surprising finding: methionine, a common amino acid found in many protein-rich foods, may help the body fight off deadly inflammation.
The study, published in Science Daily, found that mice given methionine supplementation survived severe infections and inflammatory conditions at dramatically higher rates than untreated mice. What makes this discovery noteworthy is the mechanism: rather than directly modulating the immune system, methionine appears to work by boosting kidney function.
According to the researchers, the amino acid enhanced the kidneys' ability to filter and eliminate excess inflammatory molecules from the bloodstream. When these inflammatory compounds accumulate unchecked, they can cause widespread tissue damage, brain dysfunction, muscle wasting, and ultimately death.
This finding suggests a different approach to treating severe inflammation—supporting the body's natural detoxification pathways rather than directly suppressing immune responses. Methionine is found in foods like eggs, fish, Brazil nuts, and sesame seeds, making it one of the most accessible amino acids in the typical diet.
Further research is needed to determine whether these results translate to humans, but the study offers a promising new avenue for understanding how basic dietary components might help the body cope with life-threatening inflammatory conditions.