Many food labels hide the true number of calories in that food by splitting up servings. If you buy a regular-size bottle of fruit juice, it’s unlikely that you share it with your friends. Common sense dictates that the whole bottle is one serving. So, for example, if the label says it’s 120 calories per serving, you may feel that it’s just fine. But look more closely at the label. It might say that this one bottle is meant to serve 2.5 people. So, when you drink that bottle, you’ll be swigging down many more calories than you believed. When you read a food label, always check the number of servings first, then the number of calories per serving.