Another reason to get rid of the silly monarchy: Prince Charles is a quack.

Professor Edzard Ernst criticised the heir to the throne for lending his support to homeopathic remedies and for promoting the Duchy Herbals detox tincture.

In a briefing with reporters at the Science Media Centre in London, Ernst warned that “snake oil salesmen are ubiquitous and dangerous”, and named the prince as “one of the most outspoken proponents of homeopathy”.

He later told the Guardian: “There are no official criteria for a snake oil salesman, but if they existed, I think Charles would fulfil them.”

What are these Duchy Herbals, you might ask?

Britain’s leading academic expert on complementary medicine has warned that the Duchy Herbals Detox Tincture – a food supplement, which combines artichoke and dandelion and promises to rid the body of toxins while aiding digestion – is based on notions which are “implausible, unproven and dangerous”.

It also doesn’t work.

So, you Brits, when are you going to get rid of these goofy parasites? They seem to get worse and worse every year.