Think of algin like a sweeper (or something like psyllium husks if you ever have eaten them); but for heavy metals ie mercury.

From my reading chlorella acts as both a mercury releaser and a sweeper so I would think you would take algin away from chlorella. It's been suggested to take algin away from your other supplements; so hour before and after or what not.

As far as sulphur foods to avoid; I assume you are refering to the alliin type of foods such as garlic/onions etc ...
From what I read its a good idea to cut back on them till 3 month post removal.

-correct me if I am wrong on any of my info above anyone-