Trying to watch your weight? Stay clear of the drive-thru at all costs. People who eat too much fast food gain more weight and are more likely to develop early signs of diabetes.

That's the conclusion of a study of more than 3,000 white and black American adults. Participants reported their fast-food dining habits for 15 years, starting when they were 18-30 years old. They found that those who ate fast food more than twice a week gained 10 more pounds during the study than participants who ate fast food less than once a week. They also doubled their insulin resistance, a sign of early diabetes.

This may not be a surprise to most people, but let's use this healthy bit of info as a reminder on your next fast food visit to opt for the chicken salad and not the double quarter pounder with cheese. Breaking the convenience food habit all together would be the best fix for a healthier, more active lifestyle.