Onion’s secret may be strongest cancer-fighter

If your fridge and pantry are filled with cancer-fighting foods like berries, dark leafy greens, dark chocolate, turmeric, green tea and broccoli, you should be on your way to a long, cancer-free life…

But, if cancer prevention is your goal, there’s one other cancer-fighting food you shouldn’t forget about — the onion.

Onions are members of the Allium family of vegetables — a family that rivals the Cruciferae (which includes the brassica that stops cancer growth and horseradish–reportedly to be even 10 times stronger) in their cancer-fighting prowess.

Other Alliums are garlic, scallions, shallots, leeks and chives. They all contain sulfuric compounds like allylsulfides and flavonoids like quercetin, which are documented cancer-fighting compounds. That’s why they’ve been shown to fight prostate, breast, stomach, colon and esophageal cancer.

But the onion stands out above the rest of its Allium cousins in one respect—and it may be the single reason for its extreme anti-cancer properties…

It contains far more quercetin than its close comrades. And quercetin is considered the anti-cancer flavonoid. It fights free radical damage, inflammation and more than five different types of cancer.

But quercetin isn’t the only anti-cancer compound in onions. Researchers recently identified another compound with an amazing ability to wipe out cancer cells. And this compound is extremely effective against ovarian cancer, a rare but deadly cancer that affects women.

It’s called onionin A (ONA). And researchers from Kumamoto University in Japan found that ONA stopped the growth of epithelial ovarian cancer cells and shrunk tumors. And it did all this without harming healthy cells.

Now, the onion’s cancer-fighting abilities are amazing to say the least. But the best part about onions is that they can fight cancer while improving your day-to-day health too. Onions can:

  • Strengthen your immune system
  • Improve your heart health
  • Balance your blood sugar
  • Fight bacterial infections
  • Boost libido
  • Relieve gastrointestinal issues
  • Help urinary tract disorders
  • Strengthen your bones

You may be wondering why a simple onion is such a powerful health booster. Well, besides its cancer-fighting compounds, onions also contain vitamin C, vitamin B6, manganese, folate, potassium, phosphorus and vitamin B1.

Of course, every type of onion is a little bit different as far as the beneficial compounds it contains. Sweet onions like Vidalia onions have less beneficial compounds than yellow and red onions. Yellow onions contain the most cancer-fighting quercetin and sulfuric compounds. But red onion, on the other hand, contains more of other antioxidants.

The best way to take advantage of all these wonderful health benefits is to include onions in your diet on a daily basis. It sounds like a lot, but you should try to eat one medium onion per day. That’s about one cup chopped. Eat it raw in salads or cooked in your favorite dishes (like Margaret Cantwell’s favorite cancer-fighting recipe). It’s healthy either way. And if you aren’t a big fan of the taste of onion, you can always take an onion supplement. Just as long as you’re giving your body the cancer-fighting compounds it needs to stay healthy.

Editor’s note: As you’ve just read, natural cancer fighters exist in nature. But the sad truth about the medical establishment’s biggest money maker is that most will never leave the research lab. Dr. Michael Cutler reveals how to escape outdated and useless conventional treatments and drug therapies — and lists dozens of the best vitamins, supplements and alternative therapies to help prevent and treat cancer in his comprehensive guide, Surviving Cancer! To get your copy today — plus 3 FREE reports — click here!

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  2. “Onion Nutrition: Natural Antibiotic & Anti-Cancer Aid.” Dr. Axe. https://draxe.com/onion-nutrition/. Retrieved October 21, 2016.
  3. “Onions and Garlic For Your Health.” American Institute for Cancer Research. http://preventcancer.aicr.org. Retrieved October 21, 2016.
  4. Sengupta, et al.“Allium vegetables in cancer prevention: an overview.” Asian Pacific Journal of Cancer Prevention. Jul-Sep 2004;5(3):237-45.
  5. Srivastava, et al. “Quercetin, a Natural Flavonoid Interacts with DNA, Arrests Cell Cycle and Causes Tumor Regression by Activating Mitochondrial Pathway of Apoptosis.” Scientific Reports, 2016.
  6. Tsuboki, et al. “Onionin A inhibits ovarian cancer progression by suppressing cancer cell proliferation and the protumour function of macrophages.” Scientific Reports, 2016.
  7. “To stay healthy, eat an onion a day.” Fox News. http://www.foxnews.com. Retrieved October 21, 2016.


Jenny Smiechowski

By Jenny Smiechowski

Jenny Smiechowski is a Chicago-based freelance writer who specializes in health, nutrition and the environment. Her work has appeared in online and print publications like Chicagoland Gardening magazine, Organic Lifestyle Magazine, BetterLife Magazine, TheFix.com, Hybridcars.com and Seedstock.com.