I'm 5' 7'' and 128 lbs, I eat around 550-600 calories a day I guess, but I never, not ever feel hungry! Here's what I ate today: Breakfast: Cereal (for digestion) with milk (0,9% fat) - 150 calories Snack: A bar of dark chocolate (80% cocoa) - 25 calories Lunch: Integral rice and a salad and just a little fish (I didn't like the way it was prepared) - 250-300 calories Dinner: Compote (whole fruits boiled in water) I added 1,5 teaspoons of honey in it, 110 calories It adds up to around 550 calories today more-less (it is like this every day). I also exercise. I do yoga for an hour, speed walk for 45 minutes, and swim about three times a week. I am not trying to lose weight, I just eat healthy and really am not hungry, so I don't starve myself. I eat a balanced diet- eggs ( actually egg whites, the one thing I hate the most is yolk..:\ ), whole grains, fish, vegetables, fruits, milk... I really don't feel weak, on the contrary I am full of energy. I was just bored and calculated the amount of calories I had today, and was kind of scared because it was below 1200, then I realized I never eat above 1200! What should I do, should I continue like this, and stop only if I start feeling ill, and bad, or should I eat more (I feel if I did this I would be stuffing myself) P.S: Except for turkey and chicken I dont eat any other form of red meat. Oh and, I eat ALL kinds of vegetables