Sugar

The strongest cancer connection for sugar is indirect. All cells use glucose, so the popular claim that sugar uniquely feeds cancer is oversimplified. However, diets high in sugar-sweetened beverages and ultra-processed foods can promote weight gain, insulin resistance, fatty liver, and chronic inflammation. Because obesity and metabolic dysfunction are linked to several cancers, high sugar intake can contribute to a cancer-promoting internal environment over time. The record should emphasize metabolic and weight-related pathways rather than a simple direct-cause claim.