It's interesting that overall spending doesn't decrease that much in the end, although shifting from snacks to fruit is the kind of change health advocates have always wanted?
GLP-1 helped me kick my cravings for junk food, but that just meant I was eating more of the "expensive" stuff. Instead of $0.50 worth of Doritos as a snack, I'm eating $1.50 worth of Greek yogurt and $1.50 worth of fruit.
More than a billion asians eat nutritious, cheap and calorie-balanced meals every day, unprocessed.
Staples like legumes and rice don't cost much and are very nutritious. And supplementing with moderate amounts of seasonal fruits and vegetables and moderate animal protein is still very affordable and healthy.
A kilo of (dry) legumes is about $3.50, about 3500 calories (50% more than an average human needs per day), delivers >200 grams of protein, > 100 grams of fiber, some healthy fats and enough carbs to power you and a good set of vitamins.
Hell if you get down to it, vitamin pills to supplement any deficiencies is a budgetary rounding error.
Compare that to either Doritos and you don't get anywhere close. Doritos cost >$10 per kilo, and cost >$100 per kilo of protein, has low fiber, high fat, high salt. It's not nutritious, actively harmful and actually extremely expensive to fuel the body this way.
And it makes sense: processing ingredients leads to a more expensive product than the base ingredients. This is true in every economic sector. Only uniquely, in the food sector ultra-processing doesn't only lead to higher prices for the customer (the reason companies do it in the first place) but also less healthy outcomes.
Doritos are made of corn and vegetable oil. The prices of these ingredients are orders of magnitude lower than the end-product. Corn is like 30 cents per kilo, oil about $1.50. If you want the same nutrients without processing like frying etc, you can eat literal orders of magnitude cheaper.
If you are seriously comparing the attractiveness of “legumes” (what legume and recipe is that?) with the attractiveness of Doritos I don’t know what to tell you.
If you cook something that is nearly as attractive as ultra processed foods, the price skyrockets.
OP said processed foods are cheaper per calorie than healthy, i.e. eating healthy is more expensive and more difficult.
Nothing at all was said about 'processed foods are more tasty, thus eating healthy is more difficulty', so I didn't reply to it.
Then OP provided Doritos as an example. And I countered by showing that the worlds staple foods eaten by billions, non-processed, are much cheaper than eating processed foods like Doritos example OP gave. That's all.
Now as for your point on taste: try eating a nice daal at your local Indian restaurant and tell me you'd rather eat bags of doritos every day for breakfast, lunch or dinner. If you prefer Doritos then I don't know what to tell YOU.