Consumption of a dark roast coffee blend reduces DNA damage in humans
link.springer.com
link.springer.com
* Is this effect of "0.23% TI" significant?
* what about other roasts?
* what happens if the initial period of 4 weeks with no caffeine or the 4 weeks with coffee are shorter or longer?
* What happens if the test is done with people who had low or no previous consumption of caffeine? With old or young people?