The US got there first. UK, Aus & NZ are catching up fast. Rest of the first world is following. Don't think there is anything special happening in the US
Agree that much of it is cultural. The norms of eating have changed enormously in my half century
Four years Primal with influences from Jaminet & Shanahan and a focus on being anti-inflammatory. Using Primal to treat CVD and prevent stents from blocking free of drugs.
Eat creatures nose-to-tail (animal, fowl, fish, crustacea, molluscs), a large variety of vegetables (raw, cooked and fermented, including safe starches), dairy (cheese & yoghurt), occasional fruit, cocoa, turmeric & red wine