It is an excellent source of the powerhouse antioxidant glutathione and is high in the
sulfur compound allicin which enhances detoxification (14).
The
thiosulphanate compound allicin digests into sulfenic acid upon reaching the human stomach, and according to this study, sulfenic acid deactivates free radicals faster than any other antioxidant known to science.
In addition to containing the anti-bacterial and
anti-viral compound allicin (also found in garlic), onions have a flavanoid called quercetin, a potent antioxidant that protects our cells from damage and has been studied as a flu - fighter.
The potent
sulfur compound allicin is known to treat serious GI infections such as SIBO (small - intestinal bacterial overgrowth) and kill parasites and yeast infections.
The compound allicin also has wonderful medicinal properties.
It contains notable concentrations of
the compound allicin, which has been shown to increase blood flow to the genital region.
Garlic contains
the compound allicin, which has been shown to reduce levels of the stress hormone cortisol.