In 2014, Robert F Kennedy Jr found a dead bear on the side of the road. He decided to pick it up, pose for a photograph with his fingers in his mouth, and then dump the bear in New York's Central Park. 

Donald Trump has nominated this man to serve as America's next health secretary.

His appointment has shocked many experts, one of whom calls him "a risk to the public's health".

Here are some of Kennedy's most eye-opening claims.

He has accused vaccines of causing autismA condition characterised by difficulty in social interaction and communication. According to the World Health Organisation, 1 in 160 children has an autism disorder.. In reality, severe side-effects from vaccines are very, very rare - and autism is not one of them. Vaccines in fact prevent up to five million deaths a year.

Fluoride is added to drinking water in much of the US. Kennedy claims it causes arthritis, bone fractures, cancer and IQA means of measuring human intelligence. A person's IQ is usually ascertained by making them sit a standardised test. Some have criticised these tests as a means of evaluating intelligence, claiming that they ignore much of what it means to be intelligent. loss, yet dental research finds that fluoride helps strengthen teeth and prevent decay.

Kennedy has pushed against processed foods, additives and artificial flavourings, and he has a point. Research earlier this year found that those who eat ultra-processed food face a 40-66% increase in the risk of heart disease, obesity and type 2 diabetes.

Is the likely next US health secretary a crank?

Yes! Kennedy believes that antidepressants cause school shootings and that HIV does not cause Aids.

No! Kennedy might not be right on everything, but some of his calls could do a lot of good.