Paying for Participation in Placebo-Controlled Clinical Trials?

by Mario Rizzo  

A couple of weeks ago I received a letter from the Harvard Medical School inviting me, among many others, to participate in a placebo-controlled trial of the efficacy of omega-3 (fish oil) supplements and high dose Vitamin D in preventing disease. The trial would last for five years.  

I thought about it for a few minutes. But it seemed very risky. Why?   Continue reading