Part of me liked having it on the Diet & Nutrition forum so people would stumble upon it when looking into Diet & Nutrition.
But the other part of me says when things get too specialized, that's precisely the reason for creating an individual forum. It would make sense. I would like to see it called something like "Nutritarian Eating" to cue people that it is a forum about Eating and possibly about Diet and Nutrition, but specialized. My thought.