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To convert food calories to kJ, multiply by 4.184. To convert kJ to food calories, divide by 4.184. For example, a 100 calorie serving of cookies contains 418 kJ.

To answer the question it depends on activity level and goals:

Active: 2,000 calories (8,368 KJ)

Non active, maintain weight: 1800 calories (7,531 KJ)

Weight loss: 1500 calories (6,276 KJ)

Extreme weight loss: 1000 calories (4,184 KJ)

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11y ago
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13y ago

An 11 year old female child should consume abote an average of 2050 calories per day...

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12y ago

I need to know this urgently can someone tell me my email is 18271@diocesan.school.nz- Plz I need this any time so long as its before 1st November 2011!

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Q: How many kilojoules should an 11 year old girl eat a day?
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