3. Sweet Corn
Perhaps nothing says summer quite like a grilled burger, sweet corn and a cold drink. Unfortunately, sweet corn is a starchy, high glycemic vegetable. Not only is it easy to digest but it spikes your blood sugar. After you slather on the butter and salt, you have a meal guaranteed to pudge up your belly.
Limit your corn eating to one medium cob and try to cut down on the butter. And while you are at it, avoid the next vegetables.