raw onions also pack a light calorie punch, at 40 calories for each 100 grams. they contain no cholesterol, and simple sugars like glucose, fructose and sucrose account for most carbohydrates. plus, about 89 per cent is water, which make onions a solid source of hydration. trace amounts of vitamins and protein also find their way into the vegetable.
onions also have the power to turn a mediocre meal into a crisp, aromatic delight, add substantial depth of flavour and sweetness to dishes without resorting to not-so-healthy ingredients, like butter, sugar, and salt.
amanda li, a registered dietician, chef and food-centric nutritionist, says onions should be used in meals every day.
“they not only serve as a flavour base, but they are also packed with phytonutrients,” she says. “one of these powerful plant compounds that are found in onions is quercetin, which has potent anti-inflammatory properties that have been shown to help decrease blood pressure and reduce triglycerides, a type of cholesterol.”
onions also contain thiosulfinates, which are sulphur-containing compounds, and are known to discourage harmful microorganism growth and help prevent some cancers. and one only has to look as far as the international journal of research in pharmaceutical sciences for proof