Prof Ernst, who recently stepped down from his role at Exeter University, also said that Charles's support of what he calls 'integrated medicine' was "a big smokescreen to smuggle unproven or disproven treatment into the NHS (National Health Service)".
Ernst said his early retirement from the position was the price to pay to keep the unit open. During his tenure, Ernst was a controversial figure who rarely had a good word to say about alternative medicine.
He had an earlier clash with Prince Charles when he was accused of breaching a confidentiality agreement over a report about alternative medicine in the NHS. The row led to his early retirement.