Tribulus side effects
Across 216 first-hand reports, people mentioned a side effect 23 times (about 11 per 100 reports). The most common: anxiety, aggression, irritability. User reports show what people notice — they can't tell you whether Tribulus is safe for you.
Reported side effects
anxiety5
aggression5
irritability3
insomnia3
anger3
jitteriness2
increased heart1
gyno1
What got worse for some people
In their own words
“I've already taken turkesterone, fenugreek, tribulus, and ashwagandha consistently but it didn't have much of an effect to be honest.”
“I loved the cognitive / confidence boosting effects, but discontinued after getting paranoid when I noticed I was starting to shed more hair.”
“I did get a little insomnia one night, waking up around 2am and having a little difficulty getting back to sleep. On this day I stacked it with tribulus.”
“I've tried Tribulus, and DAA.....both really didn't seem noticeable. Placebo would be the only likely effect.”
“each time I got weird heart rate or increase anxiety so I quit immediately”
“I took a single capsule of tribulus this morning at 8am and I am still wired now over 12 hours later... great day of no anxiety, supreme confidence”
Is Tribulus safe? What the research covers
AResearch: Strong13 meta-analyses · 34 randomized trials on PubMed
None of the top reviews we found focus on safety. All research on Tribulus.