[Vespers War]

One of the issues that would face a T2K food situation and trying to source the foods for these rations is the extreme concentration of crops. Take the Midwest. Here's their acreage of plant-based agriculture according to the USDA/NASS 2020 State Agriculture Overview (in millions of acres):

Iowa:
13.6 corn
9.4 soybean
1.225 hay
0.17 oats

Missouri:
5.85 soybeans
3.45 corn
3.145 hay
0.48 winter wheat
0.295 cotton
0.228 rice
0.035 oats

Nebraska
10.2 corn
5.2 soybeans
2.77 hay
0.9 winter wheat
0.195 sorghum
0.135 oats
0.13 millet
0.05 sunflower
0.046 sugarbeet
0.036 peas
0.019 potato

Kansas
6.6 winter wheat
6.1 corn
4.75 soybeans
3.0 sorghum
2.665 hay
0.195 cotton
0.14 oats
0.073 sunflower
0.016 barley
0.005 canola

Other than Nebraska's 36,000 acres of peas, there's no significant vegetables, and 19,000 acres of potatoes isn't much either. Modern agriculture is dependent on modern transportation infrastructure to get crops from where they're grown to where they're consumed, and when that breaks down, there's going to be malnourishment even in regions where sufficient food is grown from a caloric perspective.

Using the Rations for All food, peaches in particular are one I was discussing with a crop scientist recently. The closest significant source to these four states would be South Carolina. Michigan produces 6,000 tons per year, but that's less than 10% of what South Carolina produces and about 1.5% of what California produces; however they are the closest significant source of apples I know of at roughly 463,000 tons a year. I don't even know where they'd get pears. The closest tomatoes for D13 (and probably D7 and D8) would be in Florida.

There would be areas where the necessary foods could be sourced, but they'd be rare because of how crop concentration has progressed. Without easy transportation, that ration system's going to rapidly break down.