How many calories do i need to eat to lose weight?

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How to lose weight fast for teenage girl


Im a girl 16, 5’4, & weigh 137. I workouy every single day at the gym and burn 500-600 cals. Im trying to lose 7-10 pounds in 5-6 weeks. How many calores should i be eating??


An adult women should eat 2000 calories a day to be healthy, and it’s usually suggested that if your trying to lose weight then eat 1500 calories a day.
This doesn’t mean that you starve all day then eat all you calories in one sitting, try and avoid eating meals that are more that 500 cals. If your exercising though i suggest you eat 1850-2000 cals a day, you will need them to give you energy. You don’t want to make your self ill so you can’t do any exercise at all.
Hope this helped.


I wish schools would teach pupils that drastic diets can do more harm than good. If you are not careful, any limited food diet may deprive your body of the nutrients it needs for its proper development.
To diet and control weight properly needs some science behind it.
If you pile on the are eating the wrong things at the wrong time and in the wrong amounts. When you eat is just as important as what you eat. Chocolate is best eaten in the morning when you can burn off the calories it gives. If eaten at night when there is likely to be no exercise before going to bed, it will end up as white fat and increase your weight but do it unhealthily. Alcohol consumption is the same and it is best to avoid alcohol if on a diet. Carbohydrates like potatoes and bread are fuels, but will convert to white fat if not used – and this is likely if eaten late of an evening.

It is advisable not to lose more than 8lbs per month if you do not want to damage your health.

As someone who has been on a diet and keep fit regime for seven years, my advice is to treat diet as the way to control your weight and leave exercise for keeping fit – you can then forget about calories and just enjoy the exercise. You need to separate the two in your mind.
There are two things you need to know about weight control. The first is how many calories you will need per day.
You are using energy even when you are asleep. BMR is your Basal Metabolic Rate, which is the number of calories you’d burn if you stayed in bed all day. Strangely, if you try a starvation diet to lose weight it will decrease your BMR, making it harder to lose weight and so is counter-productive. BMR decreases as you age, making it harder to lose weight but cardiovascular exercises can increase it. I have calculated it for you and it is 1476.55. Once you know your BMR, you multiply it by a factor which depends upon how much physical activity you will do in the day. It ranges from 1.2 (sedentary) to 1.9 (very active). This will give you the number of calories you will need.
The second is an assessment of your weight.
For that you need know your Body Mass Index, which is the clinical figure that determines if you are under-, normal-, or overweight. In your case it is 23.5 and the normal range is 18.5 – 24.9, which equates to 107 lbs. – 145 lbs. at your height of 5’4″, so you are in the upper half of the normal range. You do not need to lose weight but is you must it can be done slowly over a period of time.
If you live in the UK I suggest you contact your local NHS office and speak to a Health Trainer. Knowing your BMR and your BMI will let them give you diet and fitness advice which will help you achieve your objective, and they may even throw in free periods in a gym or swimming pool. They’re the experts and their service is free.
If you live in the US ask the equivalent people at your local Medical Center.

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