Anyway, the wasabi kills the mercury. Or is it the beer that does that?
There's iron in seaweed, so that's good. And there are good omeaga-3 fatty acids in the fish fats.
So you get a little mercury. You can tell the temperature without carrying a thermometer around.
Add wasabi and the red stuff in the squeeze bottle and the mercury boils off. Wash with Sapporo, repeat.