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Something I'll add for those not aware is that ammonium is produced from natural gas.

That's not simply using gas to run the factory as an energy source but gas is the actual raw material feedstock from which ammonium is made. That's not the only way to make it but it's the major commercial process in current use.

So there's a very direct link there between natural gas prices and the cost of making ammonium fertilizer which is itself an agricultural input.

In the opposite direction, various agricultural crops can be processed to produce ethanol which can be (actually is) used as a blending component in petrol. Any rise in the price of oil thus increases the price point up to which it's profitable to add ethanol, or to add more than would otherwise be added, which then diverts some food crops into producing that ethanol.

So there's two very direct linkages between energy commodities and human food without even mentioning the fuel used in transport, farm machinery, food processing plants and so on.