Top 7 Foods to Help Prevent Cancer : Exclusive Renegade Health Article

Wednesday Apr 18 | BY |
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Black raspberries have already shown in studies to reduce tumor growth.

According to the American Cancer Society, about half of cancer deaths are preventable. Researchers published in Pharmaceutical Research (2008) stated, “This year, more than 1 million Americans and more than 10 million people worldwide are expected to be diagnosed with cancer, a disease commonly believed to be preventable.”

The authors go on to state that only 5–10 percent of all cancer cases can be attributed to genetic defects, while the remaining 90–95 percent have their roots in the environment and lifestyle.

We all know that eating more fruits and vegetables builds the body’s defenses against cancerous changes in our cells. Researchers suggest that as many as 30–35 percent of cancers are linked to diet. Fortunately, science is also discovering those compounds in certain foods that are proving to be powerful cancer fighters. Here are seven of the best we could find to date, though as you know, the research is always evolving.

1. Black Raspberries
In animal studies, researchers at the Ohio University found that those whose diets included black raspberries had a 60 percent reduction in tumors of the esophagus and up to 80 percent reduction in colon tumors. Another study at the same university in 2008 found that freeze-dried black raspberry powder restored natural activity in genes altered by a chemical carcinogen.

2. Blueberries
According to scientists from Rutgers University, blueberries are not only antioxidant powerhouses, they also have a chemical called “pterostilbene” that may help prevent colon cancer. The researchers went so far as to state that this chemical could be developed into a pill with the potential for fewer side effects than some commercial drugs used to prevent the disease. Other studies have shown that blueberries may inhibit breast cancer tumor growth.

3. Raw (or “Cloudy) Apple Juice
German researchers say that drinking two glasses of unfiltered apple juice a day may help prevent colon cancer. Animal studies showed a 38–40 percent reduction in benign tumors of the small intestine. Cloudy apple juice has been found to be up to four times higher in antioxidants than clear apple juice.

4. Spirulina
These blue-green algae thrive in fresh water, and are skimmed off the surface and processed to become a powder. Try it in your smoothies as a protein booster and cancer preventer. Studies have found spirulina to be promising in preventing oral cancer.

5. Avocadoes
Researchers at Ohio University found that Hass Avocadoes stop the uncontrollable growth of pre-cancerous cells that lead to oral cancer. Avocadoes are also high in lutein, and thus may also be beneficial in preventing prostate and breast cancer.

6. Broccoli
Together with cabbage and cauliflower, broccoli contains a component called “indole-3-crabinole” that has been found to protect against breast cancer. Broccoli also has the phytochemical known as “sulforaphane,” believed to help prevent colon and rectal cancer. In fact, a study by Oregon State University researchers found that sulforaphane targets and kills prostate cancer cells. A note—the more bitter the broccoli, the more sulforaphane it has.

7. Garlic
This is the big daddy when it comes to cancer prevention. According to researchers who analyzed a number of studies, people who consume raw or cooked garlic regularly face about half the risk of stomach cancer and two-thirds the risk of colorectal cancer as those who eat little or none. (Supplements did not have the same effect.)

Kev’s Comments:

Truth be told, most plants could be on this list, some foods just tend to have better cancer prevention action and these are some of the ones that were highlighted.

Some points to clarify here…

1. All cruciferous vegetables — not just broccoli — have anti-cancer properties. These include cauliflower, bok choy, Brussels sprouts, kale, chard, collard greens and more. When cooked, they do lose some of these properties, so be sure to eat a wide variety of these raw and cooked. (Not too much raw if you have a sluggish thyroid!)

2. I know some of you are going to point out that apple juice is high in sugar so it shouldn’t be used by cancer patients. While I understand the reasoning here, many of the natural cancer doctors that I interviewed feel that juices with natural sugars are not the biggest concern when it comes to healing cancer naturally. Many of the therapies use carrot juice and some apple juice and people still heal — what this means is that the fruit or sweet vegetable juice isn’t the only factor.

3. Finally, if you just eat these foods you will not be assured that you will be cancer free. There are many more factors that contribute to your risk of cancer. Some of which are hormone balance, stress levels, quality of sleep, environmental toxins, and genetic expression. A cancer prevention protocol includes all of these in the hope that together they will make you as protected as possible.

Do you try to get cancer-fighting foods in your diet? Which would you recommend?

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Photo courtesy marrick43215 via

Preetha Anand, et al., “Cancer is a Preventable Disease that Requires Major Lifestyle Changes,” Pharm. Res. 2008 September; 25(9): 2097-2116.

American Chemical Society (2007, March 25). New Research on Finding Cancer-Fighting Foods, Supplements. Science Daily. Retrieved March 31, 2012, from

Ohio State University (2008, August 27). Black Raspberries Slow Cancer By Altering Hundreds of Genes. Science Daily. Retrieved March 31, 2012, from http:///

Lynn S. Adams, et al., “Whole Blueberry Powder Modulates the Growth and Metastasis of MDA-MB-231 Triple Negative Breast Tumors in Nude Mice,” The Journal of Nutrition, August 31, 2011.

Babu Mathew, et al., “Evaluation of Chemoprevention of Oral Cancer with Spirulina-fusiformisI,” Nutr Cancer 24, 1995: 197-202.

Joel Schwartz, et al., “Prevention of Experimental Oral Cancer by Extracts of Spirulina-Dunaliella Algae,” Nutr Cancer 11, 1988:127-134.

Ohio State University (2007, September 4). Avocadoes May Help Prevent Oral Cancer, Study Shows. Science Daily. Retrieved March 31, 2012, from

“Study Confirms Safety, Cancer-Targeting Abiliyt of Nutrient in Broccoli,” Oregon State University, June 9, 2011.

Aaron T. Fleischauer, et al., “Garlic Consumption and Cancer Prevention: Mega-Analysis of Colorectal and Stomach Cancers,” American Journal of Clinical Nutrition, Volume 2, No. 4, October 2000: 1047-1052.

Kevin Gianni

Kevin Gianni is a health author, activist and blogger. He started seriously researching personal and preventative natural health therapies in 2002 when he was struck with the reality that cancer ran deep in his family and if he didn’t change the way he was living — he might go down that same path. Since then, he’s written and edited 6 books on the subject of natural health, diet and fitness. During this time, he’s constantly been humbled by what experts claim they know and what actually is true. This has led him to experiment with many diets and protocols — including vegan, raw food, fasting, medical treatments and more — to find out what is myth and what really works in the real world.

Kevin has also traveled around the world searching for the best protocols, foods, medicines and clinics around and bringing them to the readers of his blog — which is one of the most widely read natural health blogs in the world with hundreds of thousands of visitors a month from over 150 countries around the world.


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  1. Thomas says:

    Dark colored berries, natural apple cider, apple cider vinegar, cruciferous vegetables, spirulina, chlorella, haas avocados, garlic, onions and pumpkin seeds.

  2. Thomas says:

    Also organic wild apricot kernels (a little bitter but effective).

  3. Rose hips are also great because they are really high in lycopene and vitamin c.


  4. Brooke says:

    Dandelion – this is definitely anti-cancer. It’s so ironic that everyone goes around spraying an anti-cancer plant with chemicals and then wonders why everyone has cancer. I know dandelion won’t fix everyone; it just seems to be an interesting symptom of the bigger problem….

  5. KEVIN AS USUAL YOU ARE ON THE TOPIC OF CANCER, and it good and will not be enof how so ever many times you write on it. Each time it is read by a new member also. Good.

    OTHER Most important things to combat cancer are given here. Even from stage 4 you can escape if you have the determination, age, living energy balance factors in the body.

    If you put white sugar, IT WILL BE AGGRAVATING CANCER.
    04. AVOID ALL ALLOPATHIC DRUGS IMMDTLY. under supervision of a good

  6. Kathleen says:

    I really like Boku Organic Superfood.

  7. Denise B says:

    I think I eat at least one of these foods daily. I love my green smoothies in the morning with a spirulina teaspoon full mixed in. After my Mom died of pancreatic cancer 3 years ago, I am more aware of potential cancer risks than ever before. I am certain I want nothing to do with any form of cancer but pancreatic cancer was not a good way to go!

  8. kat says:

    All of the things mentioned are wonderful for any diet and I eat them all on an almost daily basis. I would also add wheat and barley grass, homegrown sprouts, kombucha and kefir. Al of which you can either grow or make your self for pennies or find at a good health food store.

  9. Kristine says:

    There is no one cure or one way. We do know that real food, mostly raw and green, coupled with exercise goes a long way to lowering one’s odds of getting it. If I was diagnosed with a cancer the first thing I would do is a detox for a month with green juices, coffee enemas and colonics probably at a center which specializes in this. I know someone who did this and her cancer was gone when she went back to the doctor after the detox. It certainly can’t hurt! At the same time, I would gather as much information (I have your Cancer Summit Kev on my C drive.) And as you say,get regular blood tests. I know someone who sadly died of a cancer. He said at the time if he pulls through he would have his blood tested every 3 months. It was discovered through a standard blood test.

  10. Charles Seiter says:

    Hello Kevin,

    It was mentioned above “Not too much raw if you have a sluggish thyroid!”

    Could you please elaborate on the reasons for this comment?

    Many thanks!

  11. lizzy says:

    Everything everyone said is great. raw fresh foods, detox, and vegetable juices is the way to go.

    I personally love herbs. I believe we were made to use herbs more often. They are the bitter tasting food group that most of us are missing in our diets.

    Olive leaf extract, dandelion, horsetail, nettle, these are all great, and I think they are safe to take regularly.

  12. Sue Rushford says:

    I’ve never heard of a black raspberry – cool!

  13. Kaori says:

    I have heard of all of the above foods except black raspberries. I have heard of red raspberry capsules, is the black raspberry powder more potent? Do you have black raspberry powder in your store? If not, why not start selling some good quality powder? I would buy it, considering my mom passed away from colon cancer, just over 6 months ago.

  14. Antonieta says:

    I’d add turmeric to all of what you’ve mentioned. be well

  15. Rebecca Cody says:

    I avoid refined sugar and don’t eat much agave, honey or other more natural sugars, but I’m less afraid of sugar in fruit and carrot juice than I once was. The body makes sugar from other nutrients, to keep a steady supply for brain function, so eliminating all forms of sugar from the diet won’t stop a cancer from getting food to grow on. Still, you don’t want to give it refined sugar, because blood sugar spikes are bad for many aspects of health.

  16. Jackie says:

    This is a good list. Omega 3’s are an important part of an anti-cancer diet, so is the powerful anti-inflammatory spice turmeric.

    Part of the problem that people have is that they don’t have time to eat good, raw greens and spices like turmeric.

    Here is my 2-minute video on a quick and healthy, omega 3 rich smoothie.


  17. John says:

    Be sure to use only organic apples. The Environmental Working Group lists apples as top of the list for pesticides.

    Also, dandelions are a good addition to a sweet juice with carrots and apples. Why spray? If you can’t beat ’em eat ’em ! has a list of anti-angiogenesis foods, many of which are on this list. Based on rcenesearch b Dr William Li and Dr Vincent Li.

    Best of all is the Budwig protocol which includes an emulsion of flaxseed oil and cottage cheese twice daily combined with an otherwise mostly vegan diet.

  18. Kally says:

    Cannibis Sativa powder (hemp) can be added to juices and smoothies etc., and contains omega 3, 6 and 9 as well as all the amino acids. Raw cannibis could be the best medicine we have…

  19. Susanna says:

    Alos Essiac tea was used at a cancer clinic in Canada with excellent results until the government closed it down.
    High quality Essiac tea can be purchased at

  20. L A Decker says:

    Hey Kev,

    Do you respond to these comments or is there someplace (link) we should look for a follow up on the hypothyroidism and not TOO much RAW? (See comment # 10 by Chas. Seiter).

    Check out Dr. Brownstein’s Book @ Iodine/Iodide And Why You Need IT. Northern Japanese eat @ 80 mg/day from their seaweed intake. The current RDA (USA) for Iodine is 150 mcg. Think @ that! It takes 1,000 mcgs = 1 mg. Axiom: Increase Iodine/Iodide shrink fibrotic tumors. Hmn?

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