1,600 to 2,000 calories a day, on average.
If they are starving, anywhere from no calories to 500 calories or so.
The average American teen consumes about 1,800 calories a day.
Depends on how much Taco bell he/she eats.
Between 1,200 and 1,400 calories, on average.
1,600 calories, in average.
If they are starving, anywhere form none to maybe 500 or so.
6,000 according to The Independent 7,000 according to The Daily Mail So, probably neither, and both are made up.
The average teenage female consumes 1,800 calories a day. The average teenage male consumes 2,600 calories per day. Teenagers need more calories because they are growing.
2155 Calories
In the UK, a daily allowance is of 2,000 calories for an average adult female and 2,500 calories for an average adult male is recommended (as a base line). If a person is more or less active than an average person, then they will need more or less calories; a person should consume enough calories so that they maintain their weight (ie it stays within ±2 lbs or ±1 kg). Food nutritional labelling in the UK uses the average adult female when providing a percentage of the daily allowance (for energy, fat, sugar, etc), which is extremely funny when applied to a chocolate confection which is advertised as "not for girls" (ie it is meant for "men").
The average diet is about 2,000 calories per day.