A study conducted by the University of São Paulo examined the association between Brazilian dietary patterns and oral cancer. Dietary data was collected from 366 patients with oral cancer and 469 controls, using a food frequency questionnaire. Three diet types were identiﬁed: “Prudent,” including frequent vegetables, fruit, cheese and poultry; “Traditional,” including rice, beans, pulses, pasta and meat; and “Snacks,” with frequent consumption of bread, butter, salami, cheese, cakes and desserts. The study concluded that the traditional Brazilian diet consisting of rice and beans plus moderate amounts of meat may confer protection against oral cancer, independently of other risk factors such as alcohol intake and smoking.
Revista de Saude Publica. 2007 Feb;41(1):19-26 (Marchioni et al.)