Re:Big Suprise (Score 1)

Nor is steak(or any meat for that matter)

Hardly. A pure carb diet is very unhealthy, and a great ticket to obesity and diabetes.

Meat isn't the only dietary protein source, and is far from the cheapest.

Quinoa, lentils, dairy, all the many varieties of nuts and beans all sustain a person, and taste good, to boot. Eggs, dairy, and a few vegetable sources are complete proteins, but the rest need only be eaten in conjunction with wheat, or rice, for example, to provide a complete protein. Meat is an ecologically expensive luxury that no one needs to eat three times a day, every day, without exception.

I find it difficult to imagine eating a pure carb diet without conscious effort. It'd look something like cake flour, sugar, water, and nothing else.