Mentioned 3 times on 1 show.
“This is one of the fundamental triggers of cancer. A compelling randomized controlled trial demonstrated that people drinking dark roast coffee daily had a 23% reduction in their DNA double-stranded breaks compared to water alone. Now, DNA double-stranded breaks, are among the most severe forms of genetic damage.”
“It generally peaks around medium roast. A darker roast reduces antioxidant levels regardless of species, and brewing methods like paper-filtered coffee will remove most of the cholesterol-raising diterpenes and they'll leave most of the polyphenols there no matter where your beans are from.”
“Colombia or Peru. And finally, keep the roast in the light to medium range. That window preserves the greatest fraction of chlorogenic acids, whereas dark roasts burn off a significant portion of those antioxidants.”