L-Glutamine prevents colds and flu
8.0Strong
evidence
evidence
The Claim
Some people believe that taking L-Glutamine can prevent common colds and flu by boosting the immune system.
Origin
This myth may have arisen from the understanding that L-Glutamine is an important fuel source for immune cells, leading to the assumption that it can enhance immune function.
What Science Says
While L-Glutamine is indeed a fuel for immune cells, evidence from clinical trials suggests that supplementation does not significantly reduce the incidence or severity of colds and flu in healthy individuals. A review of studies on amino acid supplementation found no consistent impact on immune health in the general population.
Verdict
Mostly False