The controversial test on whether people are fit to work will be debated in the House of Commons today.
Speaking to ITV Daybreak, Simon Gillespie from the MS Society said that the criteria needs to be fitting for the task.
He added that people should be assessed in some way to ensure the benefits they receive are deserved.
More top news
Absolutely rock-solid? Investors don't think so.
Fans of the hugely-popular Disney film will soon be able to sing-a-long and watch the characters come to life on stage.
The tiny sea creature was one of over 120 hatchlings to emerge from a nest on Castaways Beach and make its way to the ocean.