I don't think it's even about low carb vs. high protein to begin with. Many countries and regions in the world are fine with a high-carb diet, and people there live long, healthy lives.
Americans eat so much processed food simply because it is much cheaper than fresh food. Processed food is made to get consumers addicted (through convenience, taste, etc.) and encourage them to consume much more. Fresh food is almost the opposite.
I grew up in a country where freshly made food is actually cheaper than processed food, even to this day. People who stick to a traditional diet are mostly thin, while those who stick to a processed food diet gain a lot of weight.
This should be top comment
When I was visiting the US I was shocked how much more expensive “real” food is. Here I am spending more if I eat out or processed food versus cooking my own food at home. In the US it was basically the inverse, didn’t make any sense to me. (N=1 and 10 year old experience, but it seems to have only gotten more extreme since)
The messaging on the website pretty much agrees with you, then.
> Americans eat so much processed food simply because it is much cheaper than fresh food.
I don't understand how people come to this conclusion
Beans/grains/legumes are cheap
Frozen veg is dirt cheap (and retains its nutrition as good as, or better than fresh). In-season fruit and veg
Which foods are more expensive?
People are door-dashing their salaries away and complaining about the price of fresh food...
Convenience and addiction makes more sense, certainly not price