Most people here are trying to lose weight using advice and support from others, but very few here are professionals. This is an attempt to bring in the professionals. THINGS COULD GET NASTY!
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sorry to say this but at only 500 calories a day, i guarantee most of your loss on the scale is due to muscle loss....there is absolutely no way you kept your muscles and burned all fat on 500...that or you didn't actually stay at 500 and ate more.
im not trying to be an ass, im just letting you know eating that low is not a good idea
Why do so many people seem to think that when you're starving most of the weight loss is from muscle? Actually most of the weight loss will be fat. There will be protein loss, and most of the protein loss will be from muscle rather than other sources; but of the weight lost, a far greater proportion will be fom fat than protein. Typical protein loss for someone who had starved for 5 weeks would be about 3kg, and fat loss over the same period would be about 10kg (figures read off a graph showing the effect of starvation on the food stores of the body in "textbook of medical physiology" by Guyton and Hall)
Without having any science or research to back up my guess, I'd be shocked if I lost more muscle than fat. I didn't have much muscle before I started (i.e. wasn't lifting weights or anything) but now I do, yet a lot of excess fat has disappeared.
Last edited by alsace; February 15th, 2008 at 11:07 AM.
Why do so many people seem to think that when you're starving most of the weight loss is from muscle? Actually most of the weight loss will be fat. There will be protein loss, and most of the protein loss will be from muscle rather than other sources; but of the weight lost, a far greater proportion will be fom fat than protein. Typical protein loss for someone who had starved for 5 weeks would be about 3kg, and fat loss over the same period would be about 10kg (figures read off a graph showing the effect of starvation on the food stores of the body in "textbook of medical physiology" by Guyton and Hall)
OK OK pick us up on our Grammar or terminology if you like...the 'greater loss' might be from fat not muscle..but ANY muscle loss from starvation is bad and at 33% muscle loss to fat that is very detrimental to organ health. Perhaps it would be better to look at the bigger picture in terms of health rather than to score points of someones well meant advice to someone who was adopting an unhealthy if not downright dangerous life choice!!