In simple terms, the low calorie diet is based on the fact that in order to get rid of some fat, the most important step is to consume fewer calories than you use.
So what is a calorie?
The calorie is a unit for measuring food's ability to produce heat and energy. A 'calorie' is the amount of heat required to raise 1 kilogram of water 1 degree centigrade. If a meal has higher calories, then it will turn into a larger amount of energy when eaten.
Examples of low calorie foods include boiled potatoes, bell pepper, apricot, beef, and bamboo shoots.
Combine condensed milk, egg yolks, and Key Lime Juice. Pour into crust. Top with stiffly beaten egg whites for meringue. Brown quickly and lightly. Refrigerate. Serves 6-8.