How is regular consumption of sugar-sweetened soft drinks linked to type 2 diabetes?

Regular consumption of sugar-sweetened soft drinks is significantly linked to an increased risk of developing type 2 diabetes. This association is primarily driven by the high levels of added sugar found in these beverages, with some 12-ounce servings containing 40 grams or more—an amount that exceeds the recommended daily intake for adults.1

The mechanism connecting these drinks to the disease is tied to obesity, a condition strongly associated with type 2 diabetes. Long-term consumption of sugar-sweetened soft drinks contributes to weight gain and obesity, which in turn promotes insulin resistance and insulin deficiency. When the body becomes insulin resistant, it struggles to manage blood glucose concentrations effectively, leading to hyperglycemia. Consuming just one to two servings of these sugary beverages daily has been shown to significantly elevate the risk of developing both metabolic syndrome and type 2 diabetes.21