Comment · Wed, May 20, 2015 · Ceretropic
Excess nicotinamide increases plasma serotonin and histamine levels (2015)
What they were answering
peebaby · 1 points
So does that mean excess nicotinamide could depress testosterone?
u/MisterYouAreSoDumb · Ceretropic
That study does not prove a causal link to high serotonin levels lowering testosterone. That shows that testosterone levels modulate serotonin activity. I don't see any data that would show a link between nicotinamide and testosterone.