Losing weight demands some serious life changes. After all, you need to burn 14,645 more kilojoules (3,500cal) than you take in to lose half a kilo. But if you make a little change everyday, you could lose the same weight in a week - and it would be fairly painless.

"Kilojoule bargaining is all about making swaps and developing habits that are sustainable for the long-term rather than just depriving yourself," says nutrition and public health advocate Dr Charles Platkin. "A simple swap that cuts 2,000kJ (478cal) has a multiplier effect: If it's something you eat three to four times a week, you cut at leat 6,000kJ (1,434cal)."

To help guide you, we've put together 25 simple kJ-cutting tips to get you to your weight loss goal.

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