According to Monash University, onions are high in FODMAPs, a group of carbohydrates that triggers IBS symptoms. There aren’t any nutritional downsides to eating onions, but they may cause digestive issues for people who suffer from irritable bowel syndrome (IBS) or gastroesophageal reflux (GERD). Red onions are a bit more sharp and somewhat spicy, and they are best when cooked. The National Onion Association has a helpful chart here. Yellow onions are similar, although slightly sweeter than white onions, and they are great for caramelization. In terms of usage, white onions are the most neutral with a pungent flavor that works well in raw, grilled or sautéed dishes. Anthocyanins are a type of antioxidant that have been linked to reducing the risk of chronic diseases, like heart disease and cancer. White and yellow onions are practically identical in terms of nutrition, but red onions contain anthocyanin that give them their rich color. What’s the difference between white, red and yellow onions? Plus, onions contain prebiotic fiber, which feeds the healthy microbes in the gut and contributes to overall digestive health.
#Benefits of eating raw purple onions skin#
But it also plays a role in wound healing and collagen production, which keeps skin and joints healthy. Onions are also an excellent source of vitamin C, which is most known for its role in immune health. A 2020 study in the American Journal of Clinical Nutrition, found that a diet rich in flavonoids may reduce the risk of developing Alzheimer’s disease and other types of dementia. In addition, onions contain flavonoids, otherwise known as plant compounds, that are good for your health. A second case control study showed a link between garlic consumption and the reduced risk of breast cancer. One study found that regularly consuming allium vegetables, including garlic, onion, leeks, chives and scallions, coincided with lower incidences of colorectal cancer. What’s more, eating more onions has been linked to a reduction in certain types of cancer. Quercetin supplementation has been shown to reduce blood pressure markers in those with Type 2 Diabetes, and a study in the British Journal of Nutrition concluded that supplementing with quercetin from onion skin extract lowers blood pressure in patients with hypertension. Quercetin is known for fighting inflammation, and therefore has been studied for its potential role in treating heart disease.
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