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Top Four Cancer Promoting Foods

Posted By: Dr. Mercola and Dr. Christine Horner on 02/08/2012

Most Natural Prevention Strategies Can Reduce Your Cancer Risk by Half...

Through her research, Dr. Horner has gathered a large number of cancer-prevention strategies—about 50 in all! Even more astounding is the rate of effectiveness of many of these strategies.

"[I]f you look at the studies, virtually every single thing that has an influence [causes] almost a 50 percent reduction in cancer risk… and if you combine them, like I said, you'll get these synergistic results where they'll multiply up as far as their effect is concerned.

I'd say the most important thing is what you do or do not put in your mouth… because you can have huge influences by the foods you consume– the spices, the herbs, and so forth. And, the things that you avoid, that's going to give you the biggest results. … Vitamin D cuts your risks in half. Turmeric and anti-inflammatories cut your risk in half. I could go through each thing—and I'm telling you the research shows that there's about 40 to 50 percent reduction [in risk]—so… to say that one is necessarily better than anything else, that's a really hard thing to claim."

The Top Four Cancer-Promoting Foods

Dr. Horner brings up an excellent point, and that is that in order to be effective, you must first STOP doing that which is promoting cancer growth (or poor health in general), and then all the other preventive strategies have the chance to really have an impact. Addressing your diet should be at the top of your list, and rather than adding certain foods, you'll want to eliminate the most dangerous culprits first.

Naturally, processed foods and soft drinks do not belong in a cancer-preventive diet...

Dr. Horner, believes red meat from animals reared in confined animal feeding operations (CAFO's) is also a MAJOR contributor to cancer. These animals are given antibiotics, growth hormones and other veterinary drugs that get stored in their tissues. Additionally, cooking the meat over high heat creates heterocyclic amines, which further add to its carcinogenic effect.

While I do recommend eating meat, I agree that there is absolutely NO benefit to eating CAFO beef. The ONLY type of meat I recommend is organically-raised, grass-fed meats. It's hard for a lot of people to grasp the difference between CAFO and organic meat, but truly, they are like two different species in terms of their nutritional content. One is health harming while the other is beneficial.

So when we're talking about the detrimental impact of red meat on your health, especially in terms of feeding cancer, please understand that we're talking specifically about CAFO beef, aka "factory farmed" meat. Next on the list of cancer-promoters is sugar (this includes ALL forms of sugar, including fructose and grains).

"To me, sugar has no redeeming value at all, because they found that the more we consume it, the more we're fuelling every single chronic disease," Dr. Horner says. "In fact, there was a study done about a year ago… and the conclusion was that sugar is a universal mechanism for chronic disease. It kicks up inflammation. It kicks up oxygen free radicals. Those are the two main processes we see that underlie any single chronic disorder, including cancers. It fuels the growth of breast cancers, because glucose is cancer's favorite food. The more you consume, the faster it grows."

Next is the type of fats that you consume. It's important to remember that every cell membrane is made out of fat, as is your brain. According to Dr. Horner, bad-fats in the diet are a major contributor to ill health and cancer. On the list of fats to eliminate are:

Animal fats from CAFO-raised animals

Trans fats

Partially hydrogenated or hydrogenated fats

Healthy fats of particular importance for cancer prevention are omega-3 and omega-9. According to Dr. Horner, omega-3 in particular serve to effectively slow down tumor growth in estrogen-sensitive cancers such as breast-, prostate- and colon cancers. Fourth on the list of cancer promoters is ANY item that contains xenoestrogens (chemicals that mimic estrogen). This can become a rather long list once you start including any food contaminated with such estrogen-mimicking chemicals, such as BPA, found in the linings of canned goods and in plastics. The list gets truly unwieldy when you include personal care products that contain such chemicals as well…

"There are case reports of five- and six-year-olds going through secondary sex characteristics because of the shampoo that they were using... There are all sorts of different sources where we're exposed to these chemicals from our foods and from the products that we use.

What we're seeing is younger and younger puberty. Around the world, the average age is about 16 years old. In the United States, it's 10 years old now, and sometimes even younger. The problem is that with each menstrual period there is a surge of estradiol, which is the strongest, most abundant form of estrogen, and the one that's most associated with breast cancer. If you start your period very young, you'll have more periods in your lifetime than what a person would have, obviously, if they started at an older age.

In addition to that, when a girl goes through puberty, her breast cells become really sensitive to environmental toxins, radiation, and so forth. They're considered immature. They haven't differentiated– as a more scientific term for it– so there's a longer period of time that they're exposed to these toxins where they have a greater sensitivity."

Dr. Horner reviews a number of other important factors that influence your cancer risk, so for more details, please listen to the interview in its entirety, or read through the transcript.

Eating for Cancer Prevention

According to Dr. Horner, the research clearly shows that the one food that is the most important for optimal health is plant foods.

"Plants are packed full of nutrients, vitamins, and minerals that are crucial for our health. They also have hundreds of phytochemicals in them. These don't have any nutritional or caloric value, but they are like natural medicines, and some of them behave exactly like chemotherapy," she says.

"Every plant has some anti-cancer properties to them. There are some that are standouts. Cruciferous vegetables are something that I really recommend. They're a family of vegetables that include broccoli, cauliflower, kale, collards, and Brussels sprouts…

All of them have several different chemicals in common. They've got indole-3-carbinol, Calcium D-glucarate, and sulforaphane. They have big anti-cancer properties to them, and they inhibit the growth of breast, prostate, colon cancer and a variety of other ones. Of all the families of vegetables to consume, [cruciferous vegetables] are the ones to be aware of, so you can make sure you're including that in your diet frequently."

Naturally, you'll want to make sure the vegetables are fresh, and ideally locally grown and organic. Besides cruciferous veggies, another standout plant for cancer-prevention is flax seed. The lignans in flax seed inhibit the growth of cancer in about a dozen different ways, including the exact same mechanism as the anti-cancer drug Tamoxifen and Arimidex, which shut down an enzyme in fat cells called aromatase that converts androgens into estrogens.

"I hear from patients, "Oh! My oncologist told me not to take flaxseeds, because they're estrogenic,"" Dr. Horner says."They don't understand how plant estrogens or "phytoestrogens" work.

There are all sorts of different strengths to estrogens. Let's say estradiol, which is the strongest, most abundant form– if it hooks on to the estrogen receptor, it may cause a thousand cell divisions. But if a plant estrogen hooks on, it may cause one. When you flood your system with these plant estrogens, I'd say it's kind of like a game of musical chairs. There are only certain numbers of receptors, and whoever gets their first, gets it. They're blocking the strong estrogens from getting on, so that's why it has an inhibitory effect."

Other Lifestyle Factors that Influence Your Cancer Risk

Other lifestyle factors that have been found to have an impact on chronic disease and cancer include:

Vitamin D—There's overwhelming evidence pointing to the fact that vitamin D deficiency plays a crucial role in cancer development. As mentioned earlier, you can decrease your risk of cancer by MORE THAN HALF simply by optimizing your vitamin D levels with sun exposure. And if you are being treated for cancer it is likely that higher blood levels—probably around 80-90 ng/ml—would be beneficial. The health benefits of optimizing your levels, either by safe sun exposure (ideally), a safe tanning bed, or oral supplementation as a last resort, simply cannot be overstated. In terms of protecting against cancer, vitamin D has been found to offer protection in a number of ways, including:

Regulating genetic expression

Increasing the self-destruction of mutated cells (which, if allowed to replicate, could lead to cancer)

Reducing the spread and reproduction of cancer cells

Causing cells to become differentiated (cancer cells often lack differentiation)

Reducing the growth of new blood vessels from pre-existing ones, which is a step in the transition of dormant tumors turning cancerous

To learn the details on how to use vitamin D therapeutically, please review my previous article, Test Values and Treatment for Vitamin D Deficiency.

Getting proper sleep: both in terms of getting enough sleep, and sleeping between certain hours. According to Ayurvedic medicine, the ideal hours for sleep are between 10 pm and 6 am. Modern research has confirmed the value of this recommendation as certain hormonal fluctuations occur throughout the day and night, and if you engage in the appropriate activities during those times, you're 'riding the wave' so to speak, and are able to get the optimal levels. Working against your biology by staying awake when you should ideally be sleeping or vice versa, interferes with these hormonal fluctuations. According to Dr. Horner:

"If we, for instance, go to bed by 10, we have higher levels of our sleep hormone melatonin; there's a spike that occurs between midnight and 1am, which you don't want to miss because the consequences are absolutely spectacular. Melatonin is not only our sleep hormone, but it also is a very powerful antioxidant. It decreases the amount of estrogen our body produces. It also boosts your immune system… And it interacts with the other hormones.

So, if you go to bed after 10… it significantly increases your risk of breast cancer."

Effectively addressing your stress: The research shows that if you experience a traumatic or highly stressful event, such as a death in the family, your risk of breast cancer is 12 times higher in the ensuing five years.

Exercise—If you are like most people, when you think of reducing your risk of cancer, exercise doesn't immediately come to mind. However, there is some fairly compelling evidence that exercise can slash your risk of cancer.

One of the primary ways exercise lowers your risk for cancer is by reducing elevated insulin levels, which creates a low sugar environment that discourages the growth and spread of cancer cells. Additionally, exercise improves the circulation of immune cells in your blood. Your immune system is your first line of defense against everything from minor illnesses like a cold right up to devastating, life-threatening diseases like cancer.

The trick about exercise, though, is understanding how to use it as a precise tool. This ensures you are getting enough to achieve the benefit, not too much to cause injury, and the right variety to balance your entire physical structure and maintain strength and flexibility, and aerobic and anaerobic fitness levels. This is why it is helpful to view exercise like a drug that needs to be carefully prescribed to achieve its maximum benefit. For detailed instructions, please see this previous article.

Additionally it is likely that integrating exercise with intermittent fasting will greatly catalyze the potential of exercise to reduce your risk of cancer and stimulate widespread healing and rejuvenation.

More Information

For more information, please see Dr. Horner's book, Waking the Warrior Goddess: Dr. Christine Horner's Program to Protect Against and Fight Breast Cancer. You can also learn more about Dr. Horner on her website, www.DrChristineHorner.com.