Researchers extract cancer-fighting properties from Ontario grown onions.

Researchers extract cancer-fighting properties from Ontario grown onions. New research at the University of Guelph has found a way to safely extract the free-radical fighting properties of Ontario-grown onions, creating new opportunities for Ontario farmers and the nutraceutical and food production industries. In the not-so-distant future, you could be enjoying the healthy properties of onions through supplements, additives and creams. Scientist have long known that onions carry the highest content of quercetin (an antioxidant flavonoid) of nearly 40 different fruits and vegetables. Flavonoids like quercetin attract and neutralize free radicals – the naturally-occurring molecules in human tissue that can lead to cancerous cells. Researchers extract cancer-fighting properties from Ontario grown onions.