Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
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16.12.2020 |
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Animal study | Quercetin helps prevent virus infection after strenuous exercise
Study
A third group of mice did not run, but had been given a daily dose of quercetin for the 7-day period prior to infection. If the mice had been adult humans, they would have been given 80-100 milligrams of quercetin daily. [Con-Q] The researchers administered the flavonoid in combination with unknown amounts of vitamin B3 and vitamin C. These vitamins should improve the bioavailability of quercetin.
And you guessed it: a fourth group of mice had to run on a treadmill and were given quercetin. [Ex-Q]
In the days after the infection, the researchers checked whether the mice became ill. The figure below shows how they rated and scored the disease in the mice.
Results
It was striking that quercetin also protected the inactive mice against disease and death.
Conclusion
Well yes, but...
"Although it is easy to conclude, therefore, that quercetin protected the animals from infection, it is also possible that this was due to reduced inflammation, which would be expected to blunt the symptoms. Indeed, quercetin is known to have potent anti-inflammatory properties."
"Both of these outcomes would be considered positive responses to quercetin feeding, especially in this case, since overall morbidity and mortality were benefited by quercetin. However, in certain cases, a more rapid appearance and resolution of symptoms may be a more favorable outcome. It is important to note that a quercetin-induced reduction in inflammatory processes may not always result in a reduction in susceptibility to infection; it has been shown that inflammation is necessary for the efficient elimination of influenza virus infection."
"This is clearly an aspect that should be considered in future studies in which the dose and timing of quercetin administration in relation to virus challenge are investigated."
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