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Calories are a measurement of energy. We all need energy to keep our body working; without energy we would not be able to move, breathe, eat or keep our heart beating. We all have different requirements for energy.
The amount of calories you should eat a day depends on your age, gender and ethnicity. The calories you need will also depend on how active you are, your weight and your height. So a 14-year-old who exercises every day for 2 hours may need more than the recommended calories each day, but someone who isn’t very active might need less calories than recommended.
You can see if you are a healthy weight by putting your height and weight details into the NHS BMI (Body Mass Index) calculator, which uses your height to see if you are a healthy weight.
You are having the correct calories for your body. This is keeping you in the healthy weight range.
Being underweight means that you are not eating enough for your height. This can leave you feeling low in energy, and can lead to health problems.
For more information on being underweight, have a look at:
This means that you have more calories going into your body than you are burning off, which results in a slow gain of weight. If you are overweight, you can feel low in energy, and it can lead to health problems.
If you have any more questions on this area or would like to speak to somebody about this topic, have a look at the links or search for your local services in the blue box below. Alternatively you can always contact your public health nurse.
Find out what services are available to you in your area. Remember your school nurse is always there to give you confidential help and support.
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