I was surprised to see your comments on chlorella, since I knew that Dr. Mercola highly recommends it.
I just came across his comments on a mercury chelation protocol, much of which he agrees with and some of which he does not. He has a lot of experience with mercury poisoning and has strong opinions. After clarifying his beliefs on why he does not support the use of DMSA, but does recommend DMPA, with reasons why, he then mentions chlorella. I pasted his comments on chlorella below, with the link to the full article below that.
Other areas of disagreement are in the negative recommendation for chlorella. Their information on chlorella is seriously flawed. It is based on a small study done by Doctor's Data. They never demonstrated increased absorption of mercury from the chlorella, only that mercury was present in the chlorella. Since hundreds of tons of mercury are deposited into the oceans every year, this is not surprising.
However, what the investigators failed to account for was that the binding coefficient of chlorella to mercury is far in excess of its potential to release mercury into the body. It only ABSORBS mercury, it does NOT release it into the body.
The other issue of potential for contamination with toxic dinoflagellates is only true for blue green algae and NOT for chlorella since chlorella is a cultured product and is NOT contaminated with it.
Here's the link to the full article. http://articles.mercola.com/sites/articles/archive/2001/06/02/mercury-autism-part-two.aspx
I have been following Dr. Mercola for many years now, reading his newsletter daily. In a world where everyone is giving so many varied opinions of what to do and not do, I tend to trust and agree with his recommendations.