Best place to buy natural supplements like red marine algae?

I am iodine deficient and I understand red marine algae is one of the best natural sources. I've read conflicting reports about synthetic iodine supplements so I want to avoid them. Anyone have any recommendations for where to buy good quality supplements?

• online

• where?

• Bikini Bottom Ask for extra on your Krabby Patty.

• From Australia.

  http://m.nydailynews.com/1.1208781

• Just eat lots of imitation crab, OP.

• It always amazes me when people have these obscure queries they never think of their subject, they just post here as if Datalounge is the catch all message board for everything. I'm sure there are entire forums somewhere devoted to users of natural supplements if you'd just look OP.