Your trainer advises you to reduce your calorie intake to between 200 and 500 calories per day? [0] That sounds very, very hazardous for anything other than very short term use, and (given the body's inbuilt "starvation mode") probably counterproductive, even then.
[0] Note that the robot suggested to reduce calorie intake by 1,500->1,800 calories, and the recommended calorie intake is 2,000.
