This Harvard Letter links high-fructose corn syrup (the leading ingredient in soft drinks) with obesity.

“Over the past 20 years or so, Americans have developed quite the sweet tooth, with an annual consumption of sweeteners at about 100 pounds per person. During these same years, many more Americans—particularly children—have become overweight and obese. Added sweeteners, such as high-fructose corn syrup, may be one of the major reasons.”

Link to Article: Newswise