Well, a new iPhone application that takes a picture of the meal with the phone, and gives a calorie read-out almost instantly, may help you.
The MealSnap app was developed by DailyBurn, a fitness social network that has created several other fitness and diet-related iPhone applications.
The new app promises to provide a calories read-out of whatever food picture you send its way.
Within minutes of taking a picture of a meal and matching it to a database of some 500,000 food items, the app sends users an alert with a range of calories for the meal that was photographed.
"The database can quickly help identity the food, how many calories there are, proteins, fat, carbs, vitamins, whatever you may want to know," the Daily Mail