Provide your sources here. Even if they do cause an insulin response (which a bunch of people have noted, is not true for many sweeteners), they do not have ca

Provide your sources here. Even if they do cause an insulin response (which a bunch of people have noted, is not true for many sweeteners), they do not have calories. If your uncle drank sugared soda instead, I'm certain he'd weigh significantly more than his life drinking diet soda. Diet sodas are a bit of a trap people fall into, though: if you switch to diet soda and don't also fix your otherwise unhealthy diet, then it won't really help you. It's better than drinking sugared soda, but not exactly the whole solution.