I’ve got a problem with this article

I’ve never been able to stick to a diet of 1400 calories. And in fact, if I did that right now, I’d be in starvation mode.

According to iShape’s calculations, without exercise, I burn 2525 calories. At 1400 calories, I’d be in deficiet by 1125 calories.

That should make me lose a pound every 3-4 days, way too fast.

Diabetes Health – Tips for Successful Weight Loss

Participants consumed an average of 1,400 calories per day
Their daily food intake was very similar—approximately 24 percent of their calories came from fat, 19 percent from protein and 56 percent from carbohydrates.