Probiotics reduce hyperactivity and improve academic performance in adults with ADHD
A double-blind RCT found that a multi-strain probiotic supplement taken daily for three months significantly decreased hyperactivity, improved gastrointestinal symptoms, and enhanced academic performance in college students with ADHD. Younger participants experienced greater overall benefits, and higher academic grades were associated with lower hyperactivity and impulsivity.
This article is automatically generated from the structured evidence profile behind the claim above. Scores reflect the quality and quantity of available research, not clinical advice.
Probiotics reduce hyperactivity and improve academic performance in adults with ADHD The current body of evidence comprises 1 study, including 1 randomized controlled trial. EvidenceHub rates the overall confidence at 42/100 (low).
The Claim
Probiotics reduce hyperactivity and improve academic performance in adults with ADHD
This conclusion is most relevant to: College students with ADHD.
What the Research Shows
The conclusion draws on 1 linked study. Highlights from the cited literature:
- ▸Exploring the impact of probiotics on adult ADHD management through a double-blind RCT. (Scientific reports, 2024) —
How It Works
The proposed biological pathway:
- ▸Probiotics modulate gut microbiota composition
- ▸Gut-brain axis influences neuroendocrine and immune pathways
- ▸Reduced inflammation and improved HPA-axis regulation
- ▸Result: Decreased hyperactivity and improved cognitive/academic outcomes
Who Might Benefit
Evidence fit by population:
- ▸College students with ADHD
Recommended Dose
Daily multi-strain probiotic supplement (specific dose not reported in abstract)
Limitations & Caveats
Important context when interpreting this evidence:
- ▸Specific probiotic strains and doses not detailed in abstract
- ▸Single study with relatively short duration (3 months) and limited generalizability to non-college populations
- ▸Subjective measures (questionnaires) may introduce bias
Frequently Asked Questions
What type of probiotic was used in this study?▼
The study used a multi-strain probiotic supplement, but the specific strains and doses are not mentioned in the abstract.
How long did participants take the probiotic?▼
Participants took the probiotic or placebo daily for three months.
Did the probiotic affect all ADHD symptoms equally?▼
The probiotic significantly decreased hyperactivity, but the abstract does not report significant effects on inattention or impulsivity.
Was there any relationship between cortisol levels and ADHD symptoms?▼
Yes, there was a negative correlation between fingernail cortisol concentrations (FCC) and symptoms of attention and impulsivity.
References
- 1.Levy Schwartz M, Magzal F, Yehuda I, Tamir S. “Exploring the impact of probiotics on adult ADHD management through a double-blind RCT..” Scientific reports, 2024. PMID: 39500949 DOI: 10.1038/s41598-024-73874-y