Cancer Prevention - A Lifestyle Approach

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According to the American Cancer Society's Cancer Facts and Figures 2017 Report there will be an estimated 1,688,780 new cancer cases diagnosed and 600,920 cancer deaths in the US by the end of 2017. Can a focus on cancer prevention practices reduce your risk?

Get to Know Your Genes

The word cancer can instill fear in even the best of us, but it doesn’t have to! So what exactly is cancer? Cancer is the result of either the normal expression of a mutated gene or the mutated expression of a normal gene.

Human DNA contains approximately 30,000 genes. Some genes are good and some genes are bad, such as the BRCA1 and 2 mutated genes linked to breast cancer. All of these genes, good or bad, need to be ‘turned on’ to be expressed. So for optimal health, you want the good genes turned on and the bad genes turned off. You also want to keep your good genes from mutating. But how do you keep your genes in check?

Express Yourself

The study of epigenetics explains that your environment influences your genetic expression. For instance, exposure to cigarette smoke or industrial pollutants can damage DNA and create gene mutations. Here are just a few other ways your environment and lifestyle can negatively affect how your genes are expressed:

  • Nutrient deficiencies

  • Fasting

  • Bacterial toxins

  • Certain medications

  • Alcohol

  • Hydrocarbons from charcoal grilling

You may even be someone with an inherited genetic mutation. But the good news is that you can mediate your bad genes by protecting 5 key pathways in your body.

The Critical 5 Pathways

Dysfunction in one or more of the following pathways can increase your risk of cancer:

  • Immune System

  • Controlling Inflammation

  • Hormonal Balance

  • Insulin Sensitivity

  • Digestion and Detoxification


Let’s take a look at the importance of each pathway.

Immune System. Your immune system works hard every day investigating things coming in, determining if these new invaders are dangerous and, if so, destroying them. They are like the bouncers for your body, kicking out the surly guys and letting the good guys in. But when you are constantly mounting assaults on the bad guys your immune system is in overdrive, initiating an inflammatory response. This stimulates rapid cell division and increases nutrients to cells – great for repairing the body, but detrimental in the presence of cancer cells. So a chronically activated immune system can increase cancer risk.

Inflammation. There is a normal inflammatory response anytime you accidentally cut your finger. But the main trigger for inflammation is oxidative stress. Oxidative damage can be caused by environmental toxins, processed foods, artificial ingredients, lack of exercise, and stress. If your diet is not rich in antioxidants, chronic inflammation can occur. Chronic inflammation stimulates excessive cell growth and inhibits apoptosis – cell death, both of which can increase your risk of cancer.

Hormones. The human body produces approximately 50 different hormones, all functioning together to keep your body healthy. They require a delicate balance, working harmoniously to influence the activities of your cells. But when one hormone gets out of sync, other hormones follow suit. One hormone, cortisol, can suppress your immune system and increase blood vessels to tumors when it is produced in excess. Additionally, breast cancer cells are studded with estrogen receptors and many types of cancer cells have several insulin receptors, both of which can drive the growth of cancer.

Insulin Resistance. When your cells lose their sensitivity to insulin, they can no longer efficiently uptake glucose for energy and they even lose many of their insulin receptors. A normal cell has 200,000 insulin receptors, while an insulin resistant cell may have only 2,000! Cancer cells are covered with insulin receptors, which means cancer cells will get preferential treatment and get their supply of glucose (and energy) over normal cells, increasing growth of cancer cells.

Digestion and Detoxification. Roughly 80% of your immune system is in your gut. So when your gastrointestinal tract is damaged or dysfunctional your immune system also suffers. Additionally, your liver and GI tract assist with detoxification. If either systems are not functioning optimally, inflammation will ensue. This creates a 1-2 punch – decreased immunity and increased inflammation – leading to high cancer risk.

Keeping Your Pathways Happy

This may sound like a lot of things to think about! But you can support all of these pathways with simple diet and lifestyle changes. Below are 4 steps you can take in your pursuit of cancer prevention.

Don’t Worry, Be Happy. Studies have shown the more stress you perceive the higher your risk of degenerative diseases. Chronic high levels of stress suppresses your immune system, increases inflammation, creates hormonal imbalance including insulin, impairs digestion and compromises detoxification. Reducing stress in your life can enhance all five pathways. Of course, stress can never be completely eliminated, but changing your perception of stressors and finding ways to de-stress – meditation, yoga, laughing, exercising, spending time with loved ones, appreciating others, and creating a gratitude journal – can all greatly reduce your stress load.

Get Moving. Physical movement actually influences our DNA. Additionally, exercise enhances immunity, reduces inflammation, decreases stress hormones and assists with hormonal balance, increases insulin sensitivity, improves digestion and stimulates liver detoxification. Pick physical activities that you enjoy and write down your fitness goals to stay motivated.

Balance Your Blood Sugar. You now know insulin resistance can greatly increase your risk of cancer. But, even before your cells reach that phase, imbalanced blood sugar levels from a diet high in refined carbohydrates and sugars creates stress on the body. Sugar compromises your immune system and blood sugar swings create inflammation in the body. Focus on a low-glycemic, whole foods based diet to control your blood sugar.

Use Foods To Heal. It is estimated that diet is responsible for 30-35% of all deaths from cancer. This statistic may not be as shocking when you understand that quality nutrition helps to repair DNA and activate tumor suppressing genes. Another sobering statistic is that obesity is responsible for one in six cancer deaths in the United States. This is partly due to the inflammatory process excess weight creates. Foods that will support the five pathways, repair DNA and optimize weight are at the heart of a Cancer Prevention Diet.

The Cancer Prevention Diet

Whether you are in remission or just trying to prevent any cancer diagnosis, there are 5 key principles to follow to optimize your health, support the five pathways and reduce your risk of cancer:

  • Consume sufficient, but not excessive, calories. Portion control is important for health and weight. Quick Tip – eat slowly, use smaller plates and eat smaller meals more frequently.

  • Eat a colorful diet. Phytonutrients in colorful vegetables help decrease inflammation, enhance immunity and promote cancer cell death. Quick Tip – work towards eating at least 5 colorful veggies and fruits per day.

  • Eat a whole foods diet. Studies indicate organic foods tend to have higher levels of vitamins and minerals compared to their conventional counterparts. Quick Tip – choose organic when possible.

  • Highlight fats from plant and marine sources. Omega-3 fats have anti-cancer properties, reduce inflammation and increase insulin sensitivity. Quick Tip – Include fatty cold water fish, flax seeds, chia seeds, hemp seeds, nuts and seeds in your weekly meal plan.

  • Reduce or eliminate refined, processed, sugary and packaged foods. Studies indicate that even one meal of refined carbohydrates increases inflammation in the body. Quick Tip – slowly replace packaged foods with a whole food equivalent (ex. boxed rice pilaf for brown rice).


Targeted supplementation can also reduce your risk of cancer. Consider EPA/DHA, probiotics, vitamin D, green tea extract, turmeric and resveratrol as options to further reduce your risk of cancer.

Early Detection

Making all of these changes won’t guarantee you stay cancer-free. If you have unexplained pain and/or weight loss, extreme fatigue, prolonged hoarseness, blood in your stool or urine, or changes in bowel movements, consult with your doctor for cancer screening. Consider the following cancer screening tests:

  • Prostate-specific antigen (PSA) for men

  • Pap smear and CA-125 ovarian test for women

  • Mammogram for women

  • Chest x-rays if lung cancer is suspected


Early detection, quality nutrition, stress management and exercise can optimize health and put your mind at ease!

Disclaimer: This information is not presented as a cure for cancer, but as support for the body’s natural healing resources.


Resources: Five to Thrive, Lise Alschuler, ND and Karolyn Gazella

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