Onions are root vegetables that include many varieties. Ten of the most common are yellow, red, white, sweet, scallions, leeks, shallots, Cipollini, and pearl.
Red onions are considered cancer fighters due to their high concentration of anthocyanin and quercetin. These substances are called antioxidants. They inhibit the growth of cancer cells and kill them.
A 2017 study published in Food Research International revealed that red onions are excellent at killing cancer cells. They are also beneficial in helping with heart disease and diabetes.
CBSNews Miami published the story Red Onions Kill Cancer Cells and Promote Healthy Heart, Study Finds.
Irene Pastore Fitness.com 