Last month, Schools Minister Nick Gibb toured the building and said it was clear it was in a bad condition.

BBC: Richard Lee Primary School in Coventry

The painting, which was not thought to be important and in a bad condition, was covered in layers of dirt and varnish and was not on display at the Bowes Museum.

BBC: Van Dyck painting 'found online'

This can lead to a condition called "ketosis", which can cause bad breath, nausea and a bad taste in the mouth.

BBC: Health risk of 'faddy diets'