OBSERVATIONS ON DIET AND INTELLIGENCE

Seems to me that, generally speaking throughout the animal kingdom, the heirarchy of intelligence is as follows:

Herbivores (plant eaters) - lower intelligence.
Carnivores (meat eaters) - medium intelligence.
Omnivores (eats both meat and plants) - higher intelligence.

Pondering that observation, some of us might wonder if that applies within a species as well. Said another way, when an omnivore decides to eat only meat or plants, does that adversely impact their intelligence? Or is that decision a reflection of their intelligence? Sort of a chicken or egg question.

Speaking only about populations, then, is a vegetarian less intelligent than an omnivore?

If you contribute to this discussion please let us know if you are a vegetarian or an omnivore.