General Importance and Health Benefits of OnionsThey may protect against cancer
In a study published in the American Journal of Clinical Nutrition, researchers looked at how often people in Italy and Switzerland ate onions and another Allium vegetable, garlic.
And improve bone density
One study that looked at perimenopausal and postmenopausal Caucasian women 50 and older found a link between onion consumption and bone health. Women who ate onions more frequently had better bone density, and decreased their risk of hip fracture by more than 20% compared to those who never ate onions.
Onions also support healthy digestion
That’s because they’re rich in inulin, a type of fiber that acts as a prebiotic. In a nutshell, prebiotics serve as food for probiotics, and help those beneficial microbes flourish. Inulin also helps prevent constipation, improve blood sugar regulation, boost nutrient absorption, and support healthy bone density. It’s possible it can support weight loss too, by curbing appetite.