In the Internet age, with the screaming on the radio, etc., it is hard to know what to believe and who is informed and who is not.

I started to write about science and medicine at the Washington Post, in the early days of the AIDS epidemic.

Be sceptical, ask questions, demand proof. Demand evidence. Don't take anything for granted. But here's the thing: When you get proof, you need to accept the proof. And we're not that good at doing that.

I have never earned one penny from any pharmaceutical company. I will never accept one penny from them either. Ever.

There are always potential side effects for every vaccine.

Daily vitamins are of no value.

It is not possible to assert publicly that Monsanto is anything other than venal without being accused of being a sellout, a fraud, or worse.