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Bacopa side effects

Across 1,156 first-hand reports, people mentioned a side effect 150 times (about 13 per 100 reports). The most common: fatigue, drowsiness, stomach issues. User reports show what people notice — they can't tell you whether Bacopa is safe for you.

Reported side effects

fatigue66
drowsiness41
stomach issues14
demotivation13
depression5
anhedonia5
apathy4
diarrhea2

What got worse for some people

In their own words

“Other sleep supplements failed at helping me (I've tried l-theanine, taurine, bacopa and ashwagandha)”
Didn't helpRead the discussion ↗
“One of the most gratifying and prominent effects that I feel from Bacopa is the attention boost.”
HelpedRead the discussion ↗
“i took bacopa for about a month (500mg) as part of my exam stack, with casual studying i was able to recall a ton of info on the exams/had no exam anxiety and got 90%+ on nearly all exams.”
MixedRead the discussion ↗
“Bacopa helped to slow down racing thoughts. I felt at peace when taking it...extreme lethargy, demotivation, and diarrhea.”
MixedRead the discussion ↗
“Bacopa monnieri, ironically, energizes me throughout the day and has a negative effect on my sleep. I only feel the demotivation effects in the morning.”
Didn't helpRead the discussion ↗
“I only started taking Bacopa last week. The last few days I've been thinking about suicide a lot - first time in quite a while. I didn't even consider it could be Bacopa until I read this post.”
MixedRead the discussion ↗

Is Bacopa safe? What the research covers

AResearch: Strong16 meta-analyses · 17 randomized trials on PubMed
Nutrients · 2025
Efficiency of Different Supplements in Alleviating Symptoms of ADHD with or Without the Use of Stimulants: A Systematic Review

Conclusion: The evidence revealed the potential use of supplements as complementary ADHD treatments under clinical guidance. The limited effect of supplements cannot replace the well-documented efficacy of stimulants for ADHD treatment. Additional studies are needed to ascertain the most effective dosages and the safety of these supplements as adjunctive treatments for ADHD.

Bacopa side effects: what 1,156 users report — PlainPill