Eat More Red Onions: It Inhibits Cancer Cells, Stops Nosebleeds And Protects The Heart | July 27, 2025

Onions—you either like them or you hate them. Well, the jury is in and according to a 2010 Business Wire survey, 87 percent of American adults like them! While there are many types of onions—sweet, Spanish, yellow, white, red, to name a few—in general, onions are one of the healthiest foods you can eat.

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Onion Are Made Of…
They are full of vitamin C, sulphuric compounds, flavonoids, and other phytochemicals that all provide powerful healing properties. Some might even say that it’s the onion you should be eating every day to “keep the doctor away.”

Onions are also very rich in polyphenols, which play an important role in preventing and reducing the progression of diseases such as cancer, diabetes, as well as various neurodegenerative and cardiovascular diseases.

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In fact, onions contain more polyphenols than garlic or leeks. These polyphenols also play a huge role in increasing the ratio of beneficial bacteria in your gut—which we now understand from studies to be significant for your overall health, weight, and immune system.

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The Power of Onions
One of the major health components in onions is the flavonoid quercetin. Studies show that quercetin is not only a powerful antioxidant with significant anti-inflammatory properties, but it can also help prevent and treat chronic diseases such as heart disease and even cancer.

According to studies conducted at the University of Maryland Medical Center, quercetin is also shown to help prevent the release of histamine—chemical in your body that causes allergic reactions, which makes onions the perfect natural antihistamines (1).

In addition, onions are shown to:

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1. Inhibit Cancer Cell Growth

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