20 Habits That Make You Fat

#5: Drinking soda—even diet!

The average American guzzles nearly a full gallon of soda every week. Why is that so bad? Because a 2005 study found that drinking one to two sodas per day increases your chances of being overweight or obese by nearly 33 percent. And diet soda is no better. When researchers in San Antonio tracked a group of elderly subjects for nearly a decade, they found that compared to nondrinkers, those who drank two or more diet sodas a day watched their waistlines increase five times faster. The researchers theorize that the artificial sweeteners trigger appetite cues, causing you to unconsciously eat more at subsequent meals.