On March 11th, I received a letter from some lawyers in Yorkshire. Who they are doesn't really matter, they're just one of many provincial firms of solicitors in the UK. They were engaged by Principle Healthcare, a firm selling vitamin pills, motto: "Our reputation is your insurance."

Unfortunately for Principle Healthcare's reputation, another blogger and regular guest writer on The Lay Scientist, James Cole, spotted some claims on their website one day that seemed to be a bit dodgy. He decided to do some investigating, and he reported his findings to the MHRA, and to Trading Standards.

They weren't very pleased with Principle Healthcare. The MHRA said: