How do you define "foods"?
If it can be really vague my list might be something like this
1. cereal grains (wheat, oats, rice, corn, etc.)
2. legumes (peanuts, peas, chickpeas, tamarind, etc.)
3. drupes (almonds, cashews, peaches, cherries, coffee, mango, olives, etc.)
4. Milk (I guess this can't really be processed into cheese, butter, yogurt, cream, without changing it too much)
5. Tubers (yams, potatoes, etc.)
6. Taproots (carrots, radishes, parsnips, beets, turnips, etc.)
7. Leaves (spinach, lettuce, kale, etc.)
8. Eggs (chicken eggs, caviar, duck eggs, quail eggs, etc.)
9. Chicken
10. Berries (blueberries, bananas, melons, grapes, tomatoes, cucumbers, chili peppers, melons, squash)
:^)
**If we're being more specific I'd pare it down to
1. Corn
2. Beans
3. Tomatoes
4. Carrots
5. Eggs
6. Milk
7. Chicken
8. Apples
9. Grapes
10. Squash
Does distilling corn into moonshine change it too much? What about fermenting grape or apple juice?**