Probiotics side effects
Across 479 first-hand reports, people mentioned a side effect 20 times (about 4 per 100 reports). The most common: stomach issues, brain fog, diarrhea. User reports show what people notice — they can't tell you whether Probiotics is safe for you.
Reported side effects
stomach issues11
brain fog2
diarrhea2
withdrawal1
fatigue1
dizziness1
nausea1
confusion1
What got worse for some people
In their own words
“I've done years of CBT, mediation, psychotherapy, exercise, sunlight exposure, probiotics ... and they helped a lot with other stuff but not the anxiety.”
“I have tried the liquid forms, the refrigerated kinds, and the dual pill versions. I can't say I have ever really noticed a difference.”
“various gut health treatments like (prebiotics and resistant starch and probiotics and ginger and a lot of fruits), which didnt help me.”
Is Probiotics safe? What the research covers
AResearch: Strong2,293 meta-analyses · 2,235 randomized trials on PubMed
None of the top reviews we found focus on safety. All research on Probiotics.