Sugar Identified as a Top Cause of the Surge in Cancer


As much as 40 percent of US healthcare expenditures are for diseases directly related to the overconsumption of sugar. Incredibly, we spend more than $1 trillion each year fighting the damaging health effects of sugar, which runs the gamut from obesity and diabetes, to heart disease and cancer.

The fact that sugar and obesity are linked to an increased risk of cancer is now becoming well-recognized. Obesity is responsible for an estimated 500,000 cancer cases worldwide each year.

Nearly two-thirds of obesity-related cancers — which include colon, rectum, ovary, and womb cancers — occur in North America and Europe. A more recent British report estimates obesity may result in an additional 670,000 cancer cases in the UK alone over the next 20 years.

According to BBC News, the Cancer Research UK and the UK Health Forum report are calling for a ban on junk food ads aired before 9pm to address out of control rise in obesity and obesity-related diseases.

Meanwhile, a German investigation into diet-induced diseases and related treatment costs reveal that sugar-induced oral disease represents the greatest chunk of that nation's health care costs.

How Excess Sugar and Obesity Promotes Cancer

One of the key mechanisms by which sugar promotes cancer and other chronic disease is through mitochondrial dysfunction.

Since sugar is not our ideal fuel, it burns dirty with far more reactive oxygen species than fat, which generates far more free radicals which in turn causes mitochondrial and nuclear DNA damage along with cell membrane and protein impairment.

Research6 has also shown that chronic overeating in general has a similar effect. Most people who overeat also tend to eat a lot of sugar-laden foods — a double-whammy in terms of cancer risk.

Chronic overeating places stress on the endoplasmic reticulum (ER), the membranous network found inside the mitochondria of your cells. When the ER receives more nutrients than it can process, it signals the cell to dampen the sensitivity of the insulin receptors on the surface of the cell.

Thus continuously eating more than your body really needs promotes insulin resistance by the mere fact that your cells are stressed by the work placed on them by the excess nutrients. Insulin resistance in turn is at the heart of most chronic disease, including cancer.

High-Fructose Corn Syrup Primary Culprit in Cancer

This also helps explain why intermittent fasting (as well as other forms of calorie restriction) is so effective for reversing insulin resistance, reducing your risk of cancer, and increasing longevity.

Obesity, caused by a combination of eating too much refined fructose/sugarand rarely if ever fasting, may also promote cancer via other mechanisms, including chronic inflammation and elevated production of certain hormones, such as estrogen, which is associated with an increased risk for breast cancer.

Moreover, this study found that it was primarily the refined fructose in high-fructose corn syrup, found in most processed foods and beverages that was responsible for the breast tumors and the metastasis.

Without Sugar, Cancer Cannot Thrive

One of the most powerful strategies I know of to avoid and/or treat cancer is to starve the cancer cells by depriving them of their food source, which is primarilysugar and excessive protein.

Unlike all the other cells in your body, which can burn carbs or fat for fuel, cancer cells have lost that metabolic flexibility and can only thrive if there enough sugar present.

Reduce Your Fructose and Non-Fiber Carb Intake

I recommend reducing your total fructose intake to a maximum of 25 grams/day, from all sources, including fruit. If you are insulin resistant, you'd do well to make your upper limit 15 grams/day. Cancer patients would likely be best served by even stricter limits.

The easiest way to dramatically cut down on your sugar and fructose consumption is to switch to REAL foods, as most of the added sugar you end up with comes from processed fare, not from adding a teaspoon of sugar to your tea or coffee. But there are other ways to cut down well. This includes:

  • Cutting back on the amount of sugar you personally add to your food and drink

  • Using stevia or luo han instead of sugar and/or artificial sweeteners. You can learn more about the best and worst of sugar substitutes in my previous article, "Sugar Substitutes — What's Safe and What's Not"

  • Using fresh fruit in lieu of canned fruit or sugar for meals or recipes calling for a bit of sweetness

  • Using spices instead of sugar to add flavor to your meal

The excess consumption of sugar in the U.S. can be directly traced to flawed dietary guidelines and misplaced agricultural subsidies. Progress is being made however, with the 2015 to 2020 U.S. dietary guidelines now recommending limiting your sugar intake to a maximum of 10 percent of your daily calories.