We"ve all heard that before; "the mean woman needs 2,000 calories and day, while males need 2,500". But how true is that exactly?

Obviously the all counts on your height for a start, along with other factors such as whether you"re a total gym rabbit or like to hit the sofa of an evening. Yet experts have come up v something they believe is far more accurate and, as it turns out, girlfriend may end up needing more calories than you think.

While it"s always assumed the the much less you eat, the thinner you become, this isn"t constantly the case. Starving the body can actually note it to cling ~ above fat cells and put a stop of muscle growth, v your brain preparing her body because that famine.

You are watching: How many calories do you really need

Now we all know that isn"t an excellent at all so, if you are intrigued, friend may uncover this little sum quite interesting.

First you must calculate her Basal Metabolic rate (BMR) making use of The Schofield Calculator (via Metro). This is the number of calories your body needs to make it through if you to be literally lying in bed all day.

Pick your age bracket for her sex and jump ~ above the scales to uncover out your specific weight (W) in kilos. Then, follow this formula:


10-17 year BMR = 13.4 x W + 692

18-29 years BMR = 14.8 x W + 487

30-59 year BMR = 8.3 x W + 846


10-17 years BMR = 17.7 x W + 657

18-29 year BMR = 15.1 x W + 692

30-58 years BMR = 11.5 x W + 873

So for example, if you"re a 22-year-old female that weighs 63kg, you take 14.8 x 63 + 487. This then equals a Basal Metabolic price of 1,419.4 calorie a day.


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Next, take this figure and apply that to among the following activity scores. But prior to you gain excited, be afflicted with in mind the "inactive men and women" actually applies to most civilization in the UK. If you counteract sitting at a desk all day by hitting the gym five times a week, however, you"re taken into consideration "moderately active".

BMR x 1.4 inactive men and also women (A human being who walk not have a physical demanding job, for example predominantly workdesk bound. Their way of life would not encompass any form of structured exercise, and also would be typically low intensity.)

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BMR x 1.6 moderately energetic women/ 1.7 for males (A human with a more physically demanding job or a job the involving lot that walking. Castle would likewise perform some structured, moderate intensity exercise around 3 times per week.)

BMR x 1.8 an extremely active women/ 1.9 for men (A person who performs intense exercise for one hour per day or whose job is an extremely physically demanding and additionally performed some structured exercise.)

So ago to that 22-year-old woman that weighs 63kg; if she"s gyms the up three times a week and also works as a nurse, for example, climate that"ll offer her a everyday intake that 2,271.

Not bad, huh?

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