Definition: "An ergogenic aid is any substance or phenomenon that enhances performance "
Fighting colds with garlic
Josling founded the Garlic Center in the 1990s, from which he conducted the research we're talking about.
Allicin is a sulfur-containing compound in garlic, which is also found in onions, leeks and chives in lower concentrations. The breakdown products of allicin cause the typical smell of garlic. Allicin and its metabolites are also thought to be responsible for the suspected positive health effects of garlic. You can read more about these here and here.
The supplement that Josling used is called Allimax. It is still on the market.
In the garlic group, the subjects were ill for an average of 1.52 days when they caught a cold. In the placebo group, the colds were sick for an average of 5.01 days.
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"The results overwhelmingly favored the supplement as a preventive measure, demonstrating accelerated relief, reduction in the severity of troublesome symptoms such as sneezing, cough and runny nose, and recovery to full fitness. A reduced likelihood of becoming reinfected with other viral strains indicated general improvement in the immune system with the active supplement."
"The results also suggest that infection and reinfection may be effectively prevented by its daily use throughout the year, with an enormous potential savings to national industry in terms of reduced sick days. This product clearly exhibits excellent antiviral activity and warrants further investigation to determine the nature and method of its viral destruction."
In addition, Peter Josling is not only an expert in the field of garlic, but also an entrepreneur. According to his LinkedIn page, Josling also markets the garlic supplement he studied. Therefore, as interesting and promising as it is, we consider this research a sponsored study.
And that is point 2.