The idea that “sugar feeds cancer” is a common belief within the natural healthcare community. Scientific research has explored this concept primarily by examining dietary patterns and cancer risk, rather than direct effects of sugar on existing tumors.
Research published in the Annals of Oncology (2006; 17(2):341–345) investigated the relationship between refined sugar intake and breast cancer risk. The study compared dietary data from 2,569 women with breast cancer to 2,588 women hospitalized for conditions unrelated to cancer or hormone-related disorders.
Participants were interviewed and completed detailed food-frequency questionnaires assessing dietary intake. The researchers used logistic regression analysis to estimate breast cancer risk in relation to dessert and refined sugar consumption.
The analysis found that women in the highest tertile of dessert intake, defined as consuming more than seven dessert portions per week, had a 19% higher incidence of breast cancer compared with women consuming fewer than 2.5 dessert portions per week. The association reflected dietary patterns prior to diagnosis and did not evaluate sugar intake after cancer had developed.
The authors reported an association between higher refined sugar intake and breast cancer risk, noting that the findings were observational in nature and did not establish a direct causal mechanism.
Educational note:
This article is for informational purposes only and is not intended as medical advice.
