Cancer Avoid Foods With High Glycemic Index (+Video)
After overweight, diabetes, stroke, refined carbohydrates are now suspected of promoting certain cancers.
The modern western diet is rich in refined carbohydrates that have a high glycemic index and load, little fiber, but lots of calories. Such foods are quickly digested and absorbed, causing a rapid rise in blood sugar, followed by a peak of insulin. They would promote different diseases of civilization such as diabetes.
Patients and Methods
According to a recent study, a high glycemic index (GI) or glycemic load would also increase the risk of cancer. Researchers at the University of New York have studied data collected since the 1990s from 3,100 volunteers. They looked for correlations between carbohydrate intake and cancer rates, adjusting for age and other risk factors.
Their results show that the consumption of carbohydrates with a high glycemic load (chips, french fries, white bread, etc.) is associated with a doubling of the risk of prostate cancer. Conversely, low glycemic index food consumption (vegetables, fruits, legumes and whole grains) was associated with a 67% decrease in breast cancer risk. Eating pulses (beans, lentils, etc.) decreased the risk of developing breast, prostate or colorectal cancer by 32%. Cancers that affect more people who are overweight or obese.
The authors conclude: ” These results are very important because they show that it is mainly the type of carbohydrates that influences the risk of cancer. Healthy sources of carbohydrates like vegetables tend to protect us from cancer, while bad sources, such as snacks or sugary drinks, seem to increase it. “
It should be noted, however, that this study was limited in scope and therefore established an association and not a causal link. Moreover, these results are not necessarily generalizable to the whole population because the participants, volunteers, were all white. In addition, they filled out their food questionnaires themselves, which could create biases.
In any case, these results seem to confirm those of previous studies. A recent study reported a link between diet with high glycemic index and development of lung cancer (3). While meta-analyzes have shown the link between starch consumption and breast cancer (3, 4), prostate cancer (5), colorectal cancer (6), and stomach cancer (7).
(3) Intake of macronutrients and risk of breast cancer. http://www.ncbi.nlm.nih.gov/pubmed/8637339
(4) Macronutrients, energy intake, and breast cancer risk: implications from different models. http://www.ncbi.nlm.nih.gov/pubmed/9209858
(5) Macronutrients, fatty acids, cholesterol and prostate cancer risk. http://www.ncbi.nlm.nih.gov/pubmed/15598953
(6) Macronutrients and colorectal cancer: a Swiss case-control study. http://www.ncbi.nlm.nih.gov/pubmed/11996466
(7) Macronutrients, fatty acids and cholesterol intake and stomach cancer risk. http://www.ncbi.nlm.nih.gov/pubmed/19465424