The 15 year old is still growing and needs more food to help with that.
they need more food, energy, and sleep because they're growing
Due to the fact that as you get much older your vital system will be wearing out and be taking in less of the suplements from your daily food consumption. Meaning you will need to take more vitamins if any than an 18 year old to keep your body healthy.
A 14-year old is more active than an office worker sitting at a desk. Therefore, 14-year olds, generally, need more energy.
more than 1
Kittens need large amounts of energy. About two to three times more than an adult cat. Kittens also need a lot of protein. Make sure the food you offer is made for kittens. Your pet will need to eat kitten-formula food until she reaches maturity, at about one year of age.
Approximately as much food as they would need on Earth in a year.
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Because girls will be getting their period and they need more iron to replace the blood they lose.
Some people need more calories than others due to the amount of physical exercise that they do. The more exercise someone does, the more calories they will need, as they burn them off much faster than someone who does very little exercise.E.g A 21 year old woman who has a job working in a office will need less calories than A 21 year old woman who is a fitness coach or a P.E teacher as they are constantly exercising and burning the calories off quicker.Men also need more calories than women.I hope this helps !! :)
I'm assuming your number is correct. It sounds believable. People that have an abundance of anything tend to develop wasteful habits. The US has a wealth of affordable food so we cook and buy more than we need and know we can throw it out because there will always be more.
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If she keeps a healthy diet and eat her greens she should not need it but some need it due to menstruation.