I think this is why it sounds wrong.
“The studies they analyzed came from 10 countries, including the United States, Canada and several European nations. The food prices were converted to international dollars and adjusted for inflation.”
It would make way more sense to break this down by region.
Food cost was a problem for us back in New Orleans cooking everything from raw ingredients, making our own way cheaper bread and cereal. Where we are in the Netherlands now, raw food is crazy cheap (only meat is high). The farmers markets here are cheap and easy to get to. Back home they were very inconvenient and more expensive, catering to the foodie crowd. The only good deal was the box o’ stuff where you get whatever they want to give you that month. Which meant we had to put up/ process/ or freeze alot as soon as we got home or we’d waste stuff.
Some places in the US also have great markets but you have to be lucky enough to be able to get to them, and some places just don’t.