When comparing common types, which specific beneficial compound tends to have higher concentrations in red onions than in their white counterparts?
Answer
Quercetin
While all onion varieties share core nutritional advantages, a distinct quantitative difference exists in their flavonoid content based on color. Specifically, when comparing red onions to white onions, the red varieties generally exhibit higher concentrations of quercetin, which is one of the most celebrated and potent flavonoids present in these alliums. This increased level is significant because quercetin provides powerful antioxidant protection and anti-inflammatory benefits. Therefore, for individuals prioritizing the maximization of quercetin intake through diet, selecting red or yellow onions over white onions is the advised choice.
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