While it’s closer to speculation than science, past discussion of health benefits from coffee focused on antioxidants. Coffee, green and black tea, and cocoa have relatively high antioxidant content[1], particularly after adjusting for quantity consumed.
I haven’t seen any breakdowns of how the average person ingests antioxidants, but it’s not like everyone eats 3 oz of blueberries a day :-) Beverages might be a major source.
Again, this is pretty close to speculation, but it’s not nothing.
Note that there is a suspected link between anti-oxidants and cancer. The mechanism is pretty simple: oxidative stress is a warning system to the cell that initiates various repair mechanisms, up to apoptosis. Too much anti-oxidants suppress this warning system, thus allowing a damaged cell to go on.
Yours is perfectly fine speculation for a message board. I just think that the result is likely confounded, and there is no reason to reach for a biological mechanism when the study wasn't causal in the first place.
While it’s closer to speculation than science, past discussion of health benefits from coffee focused on antioxidants. Coffee, green and black tea, and cocoa have relatively high antioxidant content[1], particularly after adjusting for quantity consumed.
I haven’t seen any breakdowns of how the average person ingests antioxidants, but it’s not like everyone eats 3 oz of blueberries a day :-) Beverages might be a major source.
Again, this is pretty close to speculation, but it’s not nothing.
[1]: https://pubmed.ncbi.nlm.nih.gov/11453788/ (a quick citation - IANA expert)