For centuries we have been marketed and sold products that claim extraordinary things only to find out that the evidence and application don’t match up.

So-called snake oil products have littered the internet recently and despite pretty clear regulations, the internet has turned on the firehose when it comes to advertising and marketing, to the point where regulators can’t keep up.

So, to protect ourselves we should be developing a sceptical approach, so says Nick Teller, the author of 'The Skeptic’s Guide to Sports Science' - he joins Jonathan to discuss.

Also joining Jonathan for Newsround is Catherine McGuinness, Research and Education Officer at Cavan County Museum & Lianne Shanley, PhD Researcher from the School of Biochemistry and Immunology, Trinity College Dublin.