The artificial sweetener Sucralose aka Splenda— found in many “diet” and “sugar-free” products especially diet sodas and sugar free gum— may interfere with cancer immunotherapy. Researchers found that sucralose disrupted the gut microbiome, depleted arginine, and weakened T cell response — your immune system’s cancer-fighters. Sucralose resulted in bigger tumors and lower survival in mice receiving anti–PD-1 treatment. A follow-up study of 130 cancer patients found that those consuming sucralose