Does diet soda affect blood sugar?

Drinking diet soda by itself isn't likely to cause spikes in your blood sugar levels. A study published in "Diabetes Care" in December 2009 found that drinking diet soda had the same effect on blood sugar and insulin levels as drinking carbonated water. read more

Most diet drinks (like diet soda or diet tea) have zero grams of carbohydrate per serving, so they will not raise blood glucose on their own. These diet drinks are sweetened with non-nutritive sweeteners instead of added sugars. read more

Segal and Elinav added saccharin, sucralose, or aspartame to the drinking water of mice and found that their blood sugar levels were higher than those of mice who drank sugar water -- no matter whether the animals were on a normal diet or a high-fat diet. read more