Actually, that is a pretty sound diet. It is no where near starvation. Yes, as TEK said, some do blow up after. That has more to do with their environment and willpower. (if your spouse eats like shit, your kids eat like shit, your love life sucks, your coworkers eat like shit, etc). Remember also that men have faster metabolisms that women due to carrying more muscle mass as well as extra testosterone. I would and have put my women clients on similar diets and all have lost and kept it off. In fact most usually ate less than the above mentioned diet after losing the weight and still felt good. Us guys eat and eat and eat to gain muscle and sometimes we have a hard time getting in all those calories. Most women just want to look fit and trim. Oh, and the diet is healthy as well. (lean beef and spinach for iron that women are generally lacking in, cottage cheese for calcium, oatmeal for fiber and healthy fat) About the only thing lacking would be to add about a tablespoon daily of flax or fish oil (if the tuna was not Daves).