Black coffee (caffeine) as a nitric oxide neutralizer
The speaker mentions this in passing while noting that the only other substance he knows that directly opposes nitric oxide is caffeine from black coffee. He does not elaborate on mechanism or dosage, but the statement is delivered as a practical, everyday countermeasure to the same NO problem that methylene blue addresses.
Not explained; caffeine is a known phosphodiesterase inhibitor and adenosine antagonist, but its direct NO‑scavenging action is not detailed.
czarna kawa kofeina neutralizuje właśnie ten tlenek azotu więc jest dobra

