Mubarak's health has been questioned in the past though some are suggesting this is more about putting on a show for his trial. BBC News:
Egypt's ex-President Hosni Mubarak is weak and refusing solid food, according to the country's official news agency.
He is due to stand trial in a week, accused of corruption and ordering the killing of protesters.
The head of the hospital where Mr Mubarak is detained in Sharm al-Sheikh said he was depressed, has lost weight, and was not eating enough to keep him alive, MENA agency reports.
But critics see Mr Mubarak's illness as a ploy to avoid going on trial.
