Restaurants should not sell oversized sodas because of health concerns. Over the last decades, diabetes has become an increasing issue. Just a 12 ounce of soda alone can have over 30 grams of sugar in it. Not only is it raising the risk of diabetes, but also tooth decay and heart disease which can become very serious, very quickly. With heart disease and diabetes, obesity becomes a higher concern as well. This is why the sell of oversized sodas should be limited, if not banned entirely.