hmmm..i dont know, things such as diet soft drinks and certain vegetables such as celery take up more kilojoules/calories to burn as they contain. http://weightlossinternational.com/n...rie-foods.html
i found this website^^^^^when i did a quick search on the internet.
i could be wrong though?
i would count these "negative calorie/kj" foods in my diet though - although i have never counted drinks such as tea and diet soft drinks (at only a few kilojoules per serve and when i hardly ever have it it seems pointless!).
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