Tag: Onion skins

According to research published by the National Institutes of Health, the outer scales and skin of onions can contain a concentration of quercetin up to 77 times higher than the inner parts. This astonishing fact reveals that the most nutrient-dense part of the onion, rich in the flavonoid quercetin, is often discarded.

According to extensive research, onion skins contain significantly higher levels of flavonoids than the edible portion of the onion, particularly the potent antioxidant quercetin. This means those discarded outer layers might be more beneficial than you ever realized, raising the question: does onion skin have any benefits?

A 2023 study found that onion skins contain a more concentrated amount of the potent antioxidant quercetin than the flesh itself, making them a surprisingly powerful food byproduct. So, is it healthy to eat onion skin, or is it just another kitchen scrap? The answer is nuanced, blending potential nutritional benefits with important safety considerations for consumption.