Posted by: Charlene | 2009/02/04


Good day

Im very confused when it comes to calorie counting and kilojoules.

Please help me as I dont understand. I am following a low GI diet, but how do I know if Im eating to much or less of something.

I am overweight , I weigh 70 kg and am 1.53cm. How much calories should I consume per day.
How do u work it out, how does it work


Thnak you

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Our expert says:
Expert ImageDietDoc

Dear Charlene
Kilocalories (kcals) are the non-metric unit of energy while kilojoules (kJ) are the metric unit of measuring energy. 1 kcal = 1 kJ. So if a food contains 420 kJ this equals 100 kcal. Generally speaking adult women who need to lose weight should ingest 1500 kcal or 63000 kJ per day. If you are using a low-fat, low-GI diet then this is probably also reduced in energy and will help you lose weight. By reducing your fat intake you reduce the energy content of your diet (every gram of fat contains 37 kJ or 9 kcal). In addition the low-GI of the foods you use will help to prevent insulin resistance and this will also simulate weightloss. Increase how much energy you use on a daily basis by doing 30 min of exercise each day.
Best regards

The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.

Our users say:
Posted by: Health Nut | 2009/02/05

Hi there Charlene

I think Diet Doc had a bad case of " fat fingers"  when she typed this reply...! (no offense, Diet Doc).

She meant to say that 1 kcal = 4.2 kJ, thus 100 kcal would equal 4.2*100 = 420kJ. Also, I' m sure you noticed that 1500 kcal should therefore be = 6300 kJ.

Reply to Health Nut

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