I agree, 1 month is nothing in the weight management game. I lost about half my body weight (>150lbs) years ago and have been up and down in a 40lb range around there ever since. It's a constant fight against the parts of your mind that are concerned about starving to death and/or are addicted to food. It doesn't take much for them to start winning either, some extra stress and a slightly more relaxed approach to eating will sneak up on you.