Why Diet Soda Causes Weight Gain

If you're trying to lose weight or prevent diabetes, drinking diet drinks may sabotage your efforts.

People who drink diet sodas over regular sodas are more likely to be overweight or obese, but scientists weren't sure why. The theories fell into two camps: one, something inherent to artificial sweeteners causes weight gain or two, diet sodas imply a diet and heavy people are more likely to be on one.

While we can't discount either quite yet, put down one more point for the first theory. A new study from the Weizmann Institute of Science in Israel reveals that artificial sweeteners may have a deleterious effect on our gut bacteria. Read more