Scientists have discovered that the commonplace artificial sugars saccharin (Sweet 'N Low), sucralose (Splenda) and aspartame (NutraSweet and Equal) raised blood glucose levels more than natural sugar by changing intestinal bacteria in the gut. The increase in fasting blood sugar levels was found to be significant enough to warrant attention because of the increased risk of type-2 diabetes.
The findings from the research has been criticized because the study was performed on a very small sample of people and uncontrolled confounding factors such as genetics, diet, gender, and health status may skew the results. Nevertheless, you may want to limit the amount of diet soda you consume and avoid putting artificial sugar in your coffee.
Brian Danley, CFT
"Motivation is what gets you started. Habit is what keeps you going."