The bottom line is that we're not totally sure about any of this... But Spirulina does work like this - in chelation activities - so it is likely that what these dentists have discovered is true to some extent. Exactly how it works in the body, nobody knows yet. Not enough research has been conducted.
My first thought was, "how would this affect pregnancy?" I took Supermom and Spirulina throughout my last two pregnancies (I have 4 amalgam fillings) and both babies were perfectly healthy, the pregnancies were fine, etc... However - I did have very minor yeast flare-ups now and then, which I was able to control with diet and yogurt.
So, perhaps there are other factors... are there ladies out there that have amalgam fillings and do not have any problems with recurring yeast, while taking Spirulina/Chlorella?
Doctors will do urine and saliva analysis to see if you have mercury levels in your body, but those tests will not show any levels unless you just had fillings put in, or just had them taken out. Then there are alternative doctors who will want to do one of two things; hair analysis, or a chelate-challenge.
The hair analysis is by far the "safest" way to go in determining mercury levels. They can look at a hair, and see that as the hair grew, it had "so much" mercury imput.
However, the chelate-challenge can pull a lot of mercury out of your fillings (which would pull it into your body) which could have bad effects as your mercury toxin levels would be high.
So if you have mercury fillings, I think the best thing would be to keep taking Spirulina continuously and keep chelating your body of mercury - Or, don't take any chelating medium, and leave your mercury alone, as dormant as possible. Or, get the fillings out, and chelate like crazy - (what I'm going to do.)
I can't find any info that would verify what the effects are - of having mercury chelating (being pulled out) of your body during pregnancy.
Again - I have had two healthy pregnancies on Spirulina with Amalgam fillings.
I'd like to hear more from other people on their experiences with mercury toxicity, chelation, etc...
Rebekah