How much calories should a preteen girl have a day?

Answer 1

One gram of protein has 4 grams of calories. By definition of a calorie, it is a unit of heat that determines the amount of energy that foods will produce in the human body. (In 1824, Nicolas Clement discovered that a calorie was a unit of heat)

In a dictionary, a calorie would be defined as "approximates the energy needed to increase the temperature of 1 gram of waterby 1 °C. This is about 4.2 joules."- wikipedia. This is the general definition of a calorie that you would also find in Biology textbooks.

Answer 2

I would think it would be somewhere around two thousand MAYBE I know you can find better sites than this one that have good answers too like,

Answer 3

well this depends if you are a girl i would say around 2000-3000 calories a day and if you are a boy i would say 4500-600 a day then work out later on in the day

Answer 4

2-3000