The biggest gain is with regular coffee. Decaf didn’t do as well. The decaf process takes out essential nutrients (especially minerals), which is why decaf usually doesn’t taste as good. And caffeine may have a positive health effect when it’s not overdone.

The study: The impact of coffee subtypes on incident cardiovascular disease, arrhythmias, and mortality: long-term outcomes from the UK Biobank

https://www.youtube.com/watch?v=TTHYkaT1Og0