Given a couple of questions asked below it seems that when calories are cut the body does burn fat first then muscle then organs then death etc etc. Why then do Gym instructors and assorted nutritionalist insist on telling you that large calorie deficit = muscle loss? Can anyone explain this apparent anomoly?
You first lose muscle not fat, because it is easier to convert muscle to energy than fat. Fat is "laid down" for longer term topping up of energy. That's why it is good to lose slowly over the longer term.