I find all of those as plausible contributors, except sugar. I’m skeptical that it’s responsible for the recent spike in suicide. The western world has been eating a lot of sugar for the last 150 years. Sweets and sugary drinks have been near-staples for 75+ years (and diabetes & obesity have resulted), but there’s actually been something of a decline in soda and candy consumption over the past decade. Hershey’s and the big soda companies’ domestic sales have been pretty stagnant (even declining a bit here and there) for last 10 years or so. so why would the suicide thing just now suddenly manifest?