Great, you mongoloids stopped having discussions about Captain Planet and now you discuss how much goyslop do you eat.
Instead of Captain Planet, have some
Planet Cook.
Learn how to make some yeti foot burgers from this BBC children's show (make sure you paid your TV license first).
Nobody has a 6 months of food supplies stockpiled
I could survive for 6 months on just my stockpile of maple syrup—alone.
Many people have stockpiles of food, and not just "preppers" hoarding MREs. Many, many rural families have a cellar and "chest freezer" full of food (where else will you store half-a-cow). Traditional religious communities almost all do this (Mormons, Amish, etc). Here is a typical Amish cellar:

You are aware food is seasonal right? You either store it yourself or pay somebody else to store it. Food doesn't originated from grocery stores.

Iz Dis U?
The US average annual inflation rate for food from 1968-2024 was 4%. But, there are random years with large spikes. 2% food price inflation is a "good year"; only Trump managed to consistently stay below that. This doesn't take into account food quality and "inflation" calculations are always somewhat bullshit.

It is odd to think about, but longterm stored food is an "investment" that matures at 2-10% annually.
The biggest monetary benefit is buying at the cheapest prices. This results in anywhere from a 20-90% discount.
The quality of food is also much higher. There are also efficiencies from not needing to shop as frequently, and having ingredients readily available. It also allows prioritizing shopping trips to locations with the best fresh food offerings (which are generally not big box stores).
Humans
must eat food. If you know your family of 4 are going to eat 100lbs of rice in a year, why would you choose to buy at randomly higher prices? No other investment will produce above 10% annual gains other than risky investments.