I sort of agree that you will lose weight at some level of caloric intake. And for some people, depending on the ratio of carbs, proteins, fats, etc., it is horribly low number of calories. Change the ratio and things improve. A question to ask if you can provide enough energy to get out of bed, work, etc. There is serious endocrinology going on here, and anyone who has been ridiculed for saying they have a metabolic problem has met with fools.   It's all metabolic and has to do with insulin, insulin resistance etc...the whole process of diabetes. I know that I have a good case of insulin resistance...and I have yet to find the combination of foods that will allow me to lose weight and produce enough energy to get through a fairly cut-back lifestyle. And I am rarely hungry....but pretty low energy. So if a low-fat, low-protein diet doesn't work for you change your diet. Read the dreaded Dr. Atkins as well as Dr. Schwarzbein, Dr. Bernstein, the nurses' study, stuff coming out of Harvard by Dr. Willett and out of Stanford by Dr. ???? of syndrome X fame. mg