New Study Calculates Diet Burden Associated With Cancer
Previous studies have found that high consumption of certain foods may increase the likelihood of developing cancer. Now a new study has estimated the diet burden associated with under or overconsumption of certain foods and sugar-sweetened beverages.
The researchers used a Comparative Risk Assessment model to estimate the association of diet with cancer risk. The model incorporated nationally representative data on dietary intake and national cancer incidence.
The researchers found that diet-related factors accounted for 5.2% of new invasive cancer cases in 2015. Low consumption of whole grains, dairy products and fruits and vegetables and high consumption of processed meats, red meat, and sugar-sweetened beverages contributed to the highest burden. Excessive body weight accounted for 1% of the cancer burden, and physical activity accounted for 3%.
Colorectal cancer had the highest proportion of diet-related cases, at 38.3% of all cases associated with sub-optimal diets. Cancer of the mouth, pharynx, and larynx were associated with 25.9%. 6.8% were associated with stomach cancer, 6.1% with uterine cancer, 3.9% with kidney cancer, and 3.1% with liver cancer. Approximately 16% of all diet-related cases were associated with obesity. In addition, men had a larger number of diet-associated cancer cases, compared to women.
The study was conducted by researchers from the Tufts University and Harvard University. It was published on May 22, 2019 in the journal JNCI Cancer Spectrum.