If you stop eating your body first uses up the carbohydrates/sugars, it then goes on to cannibalise the muscles for protein and then the fat reserves. During this time it lowers its requirements as much as possible, effectively going into a starvation mode.
If over the long term you eat foods of a low enough calorific value you will loose weight, what depends is which foods really do have the lowest usable calorific value, that isnt sugars.
The research the BMA use is paid for, amongst others, by the sugar and breakfast cereal industries, which have a direct motive to promote their low fat, high sugar way of life. Mainly because if they didnt they wouldnt make as much money.
I suspect were going round in circles this eve Serious as you just reply randomness to my posts today for some reason...
1) The BMA is not funded in any way shape or form by the sugar industry. I think youre confused about the nature of the British Medical Foundation.
2) Noone said stop eating. Your body only needs like 1500kCal to work perfectly. So 2500kCal is a hell of a lot. At that level your body should be going nowhere near starvation mode. In fact without exercise youd stay at about the same level indefinitely.
3) Your body does not automatically take energy from sugars then muscle and then fat. If this was the case then it would be impossible to lose any fat without going into a diabetic coma and being unable to lift any bone in your body first. Your body canabilises energy in the short term depending largely upon the %age of your maximum heart rate youre operating at. At low % heart rate its generally eating sugar and fat. Its only once you start getting up to 75% of max heart rate youre really eating into muscles and sugar only (the area youre in when doing cardio).
If this was the only thing going on then people who simply run, swim, do cardio exercises would be unable to burn fat. However they lose weight because the total calories used are at the right level. When theyve burned the muscle and sugars by being at 80% MHR then they eat they dont add fat they just replace the sugars and the muscle. If theyd burnt fat and sugar by weight lifting theyd eat and regain the fat. Go to a gym and ask any guy looking serious about their training if theyre in the cutting or bulking phase of their exercise and theyll tell you pretty much the same except theyll probably add not eating carbs after 7pm and exercising before breakfast helps focus on fat in the short term during a cutting phase.
Its all a little academic. Just use more calories than your maintainance level. Write down how much you take in for a couple of days and youll quickly know the level of how much you should be eating. As I said, for your size and age Id be going for 2000 calories with no exercise or better yet 2500 calories with 500 calories burned NOTE: 500 kCal ~45 mins of moderate exercise (running, rowing, weights) or 90 mins of light exercise (walking, gardening, hoovering). Night out on the lash or a takeaway then dont eat less just do extra exercise to compensate.
