A naturally occurring compound in broccoli and other cruciferous vegetables may help protect against asthma and other conditions due to respiratory inflammation. Consumption of broccoli sprouts led to a two- to three-fold increase in levels of antioxidant enzymes linked to the protection of human airways against oxidative tissue damage, which leads to inflammation and respiratory conditions like asthma, according to findings published in Clinical Immunology.
"This is one of the first studies showing that broccoli sprouts - a readily available food source - offered potent biologic effects in stimulating an antioxidant response in humans," said lead researcher Marc Riedl from the David Geffen School of Medicine at UCLA. The tissue of cruciferous vegetables, like broccoli, cauliflower, cabbage and Brussels sprouts, contain high levels of the active plant chemicals glucosinolates. These are metabolised by the body into isothiocyanates, which are known to be powerful anti-carcinogens. The main isothiocyanate from broccoli is sulphoraphane.
Steve - the cruciferous vegetable family is one of the most powerful therapeutic vegetable groups. Because these veggies help with impaired methylation (detoxification), they are a "must eat" for most dietary repertoires.
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