It is a study regards to "tummy fat". They found that a certain marine algae reduced tummy fat in animals, the want to see if this is also the case with humans. In animals it increases the metabolic rate and breaking down of sugars in the body, and in turn reduces fat stored in the tummy region. I find it interesting, but I do have some reservation.
I would not WANT to be the person given placebo! I would want it to actually WORK.
The upside is that I get some pretty thorough health checks!