Chili Pepper Consumption and Mortality in Italian Adults
sciencedirect.com
sciencedirect.com
But seriously, sample size seems small, only ~1200 across chill eaters and non-eaters. Effect size seems pretty small too from the graphs at the end of the article. Given the current reputation of nutrition science I suspect the result is just noise.
But four times a week = "high" intake. Pah! --that's me on an abstemious week!