I do not watch this crap but did read that Amir Khan is using it to get fit to have 3 fights next year,hopefully he will lose all 3.
For goodness sake. Where on earth did you read that?
A top level professional boxer, to 'get fit for his next fight(s)' is going to spend a few weeks sitting about on a TV set, doing no proper training, and denied sufficient calories or protein to do anything useful at all?
Magic.