Consuming beverages rich in added sugars regularly has been associated with a significant increase in the risk of developing gastric cancer, according to research conducted by Massachusetts General Hospital and Harvard Medical School. Published in August in Gastro Hep Advances, the study indicates that individuals consuming sugar-sweetened drinks daily faced a 2.45-fold greater risk compared to those who consumed these drinks once or fewer each month.
Data from the Centers for Disease Control and Prevention (CDC) show over 60% of Americans aged 18 and older consume sugar-sweetened beverages at least once daily. Nearly 60% of American children also consume these drinks daily, averaging more than 400 calories from such beverages each day. Beverages falling into this category include sodas, energy drinks, and juices with added sugars, excluding fresh fruit juices that are 100% fruit.
Gastric cancer, or stomach cancer, ranks as the fourth leading cause of cancer deaths globally. In the United States, the American Cancer Society reports that more than 30,000 people are diagnosed annually with the disease, and it claims over 10,000 lives each year.
The findings were notable, particularly among females, as the study revealed a strong link between regular consumption of sugary drinks and increased incidence of gastric cancer. However, similar associations were not found with beverages containing artificial sweeteners.
Concerns around artificial sweeteners persist, as prior studies have connected them to adverse health effects on metabolic and gut health. Dr. Manish Shah, from Weill Cornell Medicine and New York-Presbyterian, highlighted the potential significance of these findings if further validated. He noted the growing awareness around certain sugar additives in diets potentially posing cancer risks, referencing how high fructose intake was modestly linked to colon cancer development.
The exact mechanisms behind the association between high sugar consumption and cancer risk are under investigation. Shah suggested that alterations in gut microbiota due to fructose may contribute to increased cancer risks. Other studies have linked sugary drinks to weight gain and metabolic changes, with obesity being a recognized factor associated with cancer.

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