On another thread within the past few days the idea came up of alternate day fasting to lose weight. Lil mentioned that her sister in law was having great success with a regimen something like eating 600 calories one day, and 1500 or so the next. I do not recall the precise numbers. I had never heard of this before. Nomad, kindly researched the phenomena and cited the work of a Dr. Mosley of the UK and his 5:2 diet, which consists of 2 days of almost fasting (500kcals for women) and I believe consuming about 1600 kcals the other days. (I have been reading the past 6 hours so I am not sure about the numbers, here, either.) Reading about Dr. Mosley let me to Dr. Jason Fung of Canada. Dr. Fung, a Nephrologist or kidney specialist has focused upon curing diabetes through a fasting regimen which he emphasizes along with a diet based upon real food (not processed), and endorses low carb, high fat. Both physicians say that the fasting mimics the effects of Bariatric surgery without the risks. Dr. Mosley says the near fasting at 500kcals, appears to be as effective as complete fasting. Both physicians talk about the history of fasting and the near virtual presence of fasting in world's religions. Dr. Fung has a marvelous survey of the scientific literature of nearly the last 2000 years on dieting. His work is remarkable. He has a blog that explains the science behind weight loss, why dieting does not work, and what does. It is absolutely fascinating. Some of what he says: while exercise is good for you, it does not help weight loss; diets never work; fasting is good for you; weight gain comes from insulin; one reason dieting does not work is insulin resistance. And he talks about how to reverse insulin resistance. And I learned that I cannot have my Splenda. Because splenda causes an insulin spike. I have been so discouraged. I gained weight before and after my mom died (60 pounds!!!). I have learned now that I gained the weight largely because of raised cortisol levels (stress), not because I ate more. I learned that weight gain promotes more weight gain. And I have learned why about 6 months ago, I stopped losing weight and nothing I do seems to make a difference. Most of all I learned to forgive myself. That it is not my fault. Weight gain is not due to lack of control or poor choices. I cannot recommend his survey of research more highly. Oh. I remember. It was CB's thread that had the original posts that motivated me to find this work. I will go post there to say thank you.