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In reply to the discussion: Dieting results in long term changes to hormones and muscle fibers. [View all]nobodyspecial
(2,286 posts)and understand nutrition better. From the article:
Researchers, including Joseph Proietto, a professor of medicine at the University of Melbourne, have uncovered one of the main possible reasons. Two years ago, his team recruited 50 obese men and women, and coached them through eight weeks of an extreme 500-to-550-calories-a-day diet (a quarter of the normal intake for women).
Read more: http://www.dailymail.co.uk/health/article-2134162/Research-shows-trying-lose-weight-alters-brain-hormones-youre-doomed-pile-again.html#ixzz1tf0GzURY
Anyone who knows anything about nutrition and weight loss would never recommend going below about 1,200 calories a day, which is the very least an average person needs to function. Obese people need even more calories to maintain basic body functions. So, according to this article, the researchers basically STARVED these people for TWO months. And when I say starve, I don't mean a little bit hungry. These people were literally starving.
And it's no surprise that it messed up the brain chemicals that control appetite and hunger. The body is in survival mode. Your primal brain is telling you to eat because it doesn't know when it will be starving again. It will consume food to build reserves so it will survive another famine. It has no way of knowing that the starvation was self-imposed.
It's the same reason why you always want to eat something within about one hour of waking. It signals to your brain that you have ample food and all systems are go to fire up and burn calories for energy. You may have to force yourself to do it, but after a few weeks, you will actually feel hungry in the morning and end up consuming many more calories later in the day after the body signals the brain that it has been literally starving all day.