It is true that every region has significant food needs because each region is also able to produce significant food products, both in volume and in quality. For example, here in my country, each region is known for producing different food products, some are known for producing rice, and some for fish and other seafood. Such a thing is the reason why local trade happens, our region exports foods that are produced here to other regions while other regions do the same to our region. In most cases, locally exported products have higher prices, like in my area, seafood has higher prices while in the area where my mother lives rice and meat costs are higher. However, when inflation hit, it seemed as if it didn't matter what your area is rich in, all prices of food and necessities skyrocketed and what I usually spend for a month's worth of groceries is now being used to suffice 2 weeks' worth of food.
Yeah true for my country as well, every region has their own famous parts. When you pick one nation that may have a lot of meat, when you pick another it has a lot of vegetables, some plant trees, some go out to fish, some plant small stuff, some big huge land requiring stuff.
One thing we lack is wheat, which is the most common thing needed, but since it is not that profitable, and cheaper to just buy from other nations, not many do it, but that causes money going out of our nation, so I truly think government should have huge wheat lands, make a loss if you have to, but keep the money in the nation at least. Food fluctuates a lot depending on the economy, but it should not be that confusing in the end when economy becomes stable.