Instead of splurging at restaurants I’ve been making some effort to eat cheaply. I’m not looking to hit ridiculous rock-bottom costs to the point of malnutrition. I’m eating well but I exploit whatever is cheap at each visit to the grocery store. I have yet to cut out junk food.. so I could perhaps do better yet.

For the past year, my daily avg cost has been ¾ the cost of a big mac. Anyone else doing this, perhaps motivated by inflation?

There are some youtube videos of people living somewhat harshly and eating bizarre meals in order to get below the $5/day line, which is a magic number for some reason. I got the impression that simulates a welfare amount or something.

(edit)
It seems like there should be an app for this. I heard that aubergine (US: eggplant) is quite low on nutritional value, so I quit buying it on that basis. But then if aubergine is marked 50% off, maybe it has a worthy nutrition for the dollar outlook. In principle I would want to enter a price of something into an app and it should work out whether it’s a good value nutrition wise, not just w.r.t price history of that thing. Maybe this is crazy talk considering the complexity of nutrition.