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No. 6423
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>>6420
Your best bet is to go to the store and see which vegetables are cheapest; it varies by region and by season. In my region, plain green cabbage is usually very cheap compared to other vegetables.
Oats (not instant oatmeal) can be cheap depending on where you go, you might have to try a co-op or bulk/natural food store. They're pretty much the healthiest starch you can eat. (Supposedly, white wheat and white rice are the worst.)
Legumes (beans, split peas, lentils, etc.) all tend to be pretty cheap, or at least they're cheap for me when I buy them from the Mexican food aisle. They're good for fiber and vegetarian protein. I've never been poisoned by them, as far as I know you just have to make sure you cook (or soak) them in water for a long enough time so that they absorb enough water to be edible.
You'll also need to make sure you get something that has vitamin B12 in it -- this is normally not a problem, but it's not really found in the types of food I listed. You can get it from meat, dairy, and anything that's fortified with it (like a lot of breakfast cereals and probably some soy products). You don't need tons of it, I think you would get enough from eating an egg a day.
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