Does that work well for you?
Magnesium and methylation seem to have the most noticeable effects. The rest have not had obvious effects.
Where does it come from? It's similar to Cutler's regimen, with magnesium and zinc.
They're simply among the most recommended items for mercury detox.
BTW many mercury-toxic people are "thiol sensitive," meaning they don't tolerate foods well that have lots of thiols in them. (The thiols are a chemical structure that bonds to mercury in an uncontrolled manner, dragging it out to cause more damage.) And garlic is a very high-thiol food.
Garlic is a widely recommended food for general health purposes. It is also a source of gamma glutamylcysteine, from which glutathione is produced by the addition of glycine. So I felt it is worth including for boosting general detox capacity. I should add that I also supplement with glycine.