Dietary impacts on cardiovascular and cancer risks

Medical research has presented conflicting findings regarding the health impacts of spicy food consumption.

Initial large-scale studies conducted in China and the United States suggested that frequent consumption of spicy foods containing capsaicin is associated with a reduced risk of mortality and cardiovascular diseases. Analysis of approximately 500,000 Chinese adults and a separate U.S. study indicated mortality reductions of roughly 13% to 14%. Further research in Sichuan, China, observed an 11% to 14% decrease in heart attacks and strokes among regular consumers.

However, subsequent research has identified potential risks associated with certain dietary habits. A study of over 11,000 participants found a statistical association between high consumption of spicy chili peppers and an increased risk of esophageal cancer, with heavy consumers showing nearly three times the probability of developing the disease. Researchers noted that capsaicin may cause chronic irritation to the esophageal mucosa. Additionally, research in the U.S. linked daily consumption of sugar-sweetened beverages to a significantly higher risk of gastric cancer.