Answer:
Foods that are high in fats and sugars are the best source of calories.
Step-by-step explanation:
Calories are referred to as the basic unit of energy supply needed for various vital functions of the body and for maintaining proper metabolic rates of the human system. The need and requirements for calories vary with age, various disease conditions, and gender. Examples of food rich in calories are:
Butter and oils
Meat
Nuts and their various types
potatoes
Chocolates
Eggs
Cheese and creams
Baked beans and so on.