Improvement after a supplement is not the same as a comparative result
Start with the comparison. A before-and-after change alone cannot isolate the contribution of an ingredient.
Bacopa
Cognition
Partial research summary
Animal studies reported improvement in cognitive functions.
Single-ingredient studies · Scope not specified · Animal studies; human applicability unconfirmed · Includes patient groups · comparator not confirmed
Publications for this result: 2 (1 awaiting review included)
Other outcomes and study details
Distinct publications linked to this topic: 20
- Study conditions differ; results are shown descriptively and are not pooled.
- Animal and cell findings are indirect evidence.
- Some publications have not cleared source or interpretation review.
- Some papers could not be reviewed, so this summary covers only findings that could be confirmed.
What has been studied?
Distinct human comparison papers: 2
Attention-Deficit
Research with unclear study subject or type
- A change was reported, but the comparison could not be confirmed.Patient group · Single ingredient
Measurement and study conditions
- Review
- Systematic review
- Single ingredient
- Patient group
- Outcome role not specified
- Study subject not identified
- Timepoint: unspecified
- Study comparison: review summary across varied clinical trials; no common comparator estimate stated
choice reaction time
Research with unclear study subject or type
- The study reported improvement in this measurement.Single ingredient
Measurement and study conditions
- Meta-analysis
- Meta-analysis
- Single ingredient
- Unspecified population
- Secondary outcome
- Between-group comparison
- Study subject not identified
- Timepoint: Chronic dosing of at least 12 weeks
- Study comparison: Standardized Bacopa extract versus placebo in pooled trials
Cognitive flexibility
- Comparison result:A better result than the comparison group was reported.Single ingredient
Measurement and study conditions
- Controlled human study
- Randomized trial
- Single ingredient
- Unspecified population
- Outcome role not specified
- Between-group comparison
- Timepoint: unspecified
- Study comparison: unspecified
cognitive functions
Animal and cell research · indirect evidence
- A change was reported in animal or cell research.Patient group · Single ingredient · 15 days
Measurement and study conditions
- Animal study · indirect
- Single ingredient
- Patient group
- Primary outcome
- Comparison unclear
- Animal or cell research
- Timepoint: 15 days
- Study comparison: BM extract in colchicine-induced animal model; comparator details not specified in abstract
Other measured outcomes (6)
Letter Search and Stroop tasks
Other human research, including observational studies and reviews
- A change was reported before and after use. Its cause cannot be isolated.General population · Single ingredient · 1 and 2 hours after consumption
Measurement and study conditions
- Controlled human study
- Randomized trial
- Single ingredient
- General population
- Outcome role not specified
- Within-group comparison
- Timepoint: 1 and 2 hours after consumption
- Study comparison: change from baseline after Bacopa extract; no stated placebo contrast
Memory free recall
Research with unclear study subject or type
- A change was reported, but the comparison could not be confirmed.Single ingredient
Measurement and study conditions
- Review
- Systematic review
- Single ingredient
- Unspecified population
- Outcome role not specified
- Study subject not identified
- Timepoint: unspecified
- Study comparison: unspecified
nootropic utility
Research with unclear study subject or type
- A change was reported, but the comparison could not be confirmed.General population · Single ingredient
Measurement and study conditions
- Review
- Review
- Single ingredient
- General population
- Secondary outcome
- Study subject not identified
- Timepoint: unspecified
- Study comparison: narrative review summary of human placebo-controlled trials and preclinical studies; no pooled estim
overall cognitive performance score
- Comparison result:Results were mixed for this outcome.Patient group · Single ingredient · 1 and 2 months
Measurement and study conditions
- Controlled human study
- Randomized trial
- Single ingredient
- Patient group
- Primary outcome
- Between-group comparison
- Timepoint: 1 and 2 months
- Study comparison: Bacopa vs placebo at three assessment time points
Trail B test
Research with unclear study subject or type
- The study reported improvement in this measurement.Single ingredient
Measurement and study conditions
- Meta-analysis
- Meta-analysis
- Single ingredient
- Unspecified population
- Secondary outcome
- Between-group comparison
- Study subject not identified
- Timepoint: Chronic dosing of at least 12 weeks
- Study comparison: Standardized Bacopa extract versus placebo in pooled trials
Working Memory
Research with unclear study subject or type
- The study reported improvement in this measurement.Single ingredient
Measurement and study conditions
- Review
- Systematic review
- Single ingredient
- Unspecified population
- Outcome role not specified
- Between-group comparison
- Study subject not identified
- Timepoint: unspecified
- Study comparison: unspecified
This result is held for interpretation. That does not mean research found no effect.
Outcome groups needing additional review (4)
- cognitive impairment · Distinct papers needing additional review: 1Evidence criteria check: 1
- cognitive performance · Distinct papers needing additional review: 1Direction unclear: 1
- Memory · Distinct papers needing additional review: 1Direction unclear: 1
- performance at the first, second, and fourth repetition post-dosing on the CDB · Distinct papers needing additional review: 1Direction unclear: 1
One paper can appear under multiple measured outcomes or review reasons, so these counts should not be added together.
Research topics to explore
Research topics to explore
Review findings reported in each research area.
Topics with more linked papers appear first.
- View selected result
Cognition
Related papers 20 · human comparison papers 2
- View results
Stress and mood
Related papers 2 · human comparison papers 1
- self-reported stress reactivity · Improvement reported
- View results
Digestion and gut health
Related papers 1 · human comparison papers 1
- digestive complaints · Worsening reported
- View results
Immune and respiratory health
Related papers 1 · comparison findings need further review
- IL-1β, IL-6, COX-2, and iNOS · Animal or cell research · Comparison details unconfirmed
- View results
Sleep
Related papers 1 · comparison findings need further review
- sleep quality · Comparison details unconfirmed
Data coverage and detailed study classifications
Paper counts are separated by research topic below. One paper may contribute to multiple findings.
Analysis status: Public-ready
Ingredient analysis date:
How the grade was determined: B
The 60.3 evidence score includes 12 independent human studies and 11 clinical studies in the representative benefit area. The B tier reflects evidence directness, repetition, and consistency together.
The grade is based mainly on the research area with the most evidence. It does not mean the same result was found in other areas.
Papers linked to this ingredient overall: 72
Papers linked to this topic 20 · distinct papers 20 · papers with a confirmed human comparison 2 · papers needing additional review 11
Ingredient-wide papers, topic-linked papers, and sources in outcome groups use different scopes. Adding source counts may count the same paper more than once.
- Attention-Deficit: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- choice reaction time: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- Cognitive flexibility: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 1
- cognitive functions: Sources represented in this measurement group: 2 · Distinct papers with human comparisons for this outcome: 0
- cognitive impairment: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- cognitive performance: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- Letter Search and Stroop tasks: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- Memory: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- Memory free recall: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- nootropic utility: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- overall cognitive performance score: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 1
- performance at the first, second, and fourth repetition post-dosing on the CDB: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- Trail B test: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
- Working Memory: Sources represented in this measurement group: 1 · Distinct papers with human comparisons for this outcome: 0
Cognition
What the research found
overall cognitive performance score
Results for this measurement were mixed; no consistent conclusion can be drawn.
Controlled study in people · Single ingredient · Patient group
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Cognitive flexibility
The study reported improvement in this measurement.
Controlled study in people · Single ingredient · Unspecified population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Letter Search and Stroop tasks
A change was reported before and after use. Its cause cannot be isolated.
Controlled study in people · Single ingredient · General population
Within-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
choice reaction time
The study reported improvement in this measurement.
Meta-analysis · Single ingredient · Unspecified population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Trail B test
The study reported improvement in this measurement.
Meta-analysis · Single ingredient · Unspecified population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Working Memory
The study reported improvement in this measurement.
Review · Single ingredient · Unspecified population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Attention-Deficit
A change was reported, but the comparison could not be confirmed.
Review · Single ingredient · Patient group
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Memory free recall
A change was reported, but the comparison could not be confirmed.
Review · Single ingredient · Unspecified population
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
nootropic utility
A change was reported, but the comparison could not be confirmed.
Review · Single ingredient · General population
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
cognitive functions
A change was reported in animal or cell research.
Animal study · indirect · Single ingredient · Patient group
This finding comes from animal or cell research. It does not establish the same effect in people.
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
cognitive functions
The study needs further checking before its result can be interpreted.
Review · Unknown intervention · Patient group
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
cognitive impairment
The study needs further checking before its result can be interpreted.
Animal study · indirect · Single ingredient · Patient group
This finding comes from animal or cell research. It does not establish the same effect in people.
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
cognitive performance
The study needs further checking before its result can be interpreted.
Review · Unknown intervention · General population
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Memory
The study needs further checking before its result can be interpreted.
Review · Ingredient combination · Unspecified population
Several ingredients were used together. This does not establish the effect of this ingredient alone or synergy.
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
performance at the first, second, and fourth repetition post-dosing on the CDB
The study needs further checking before its result can be interpreted.
Controlled study in people · Single ingredient · General population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Unspecified measured outcome
The study needs further checking before its result can be interpreted.
Other evidence · Separable contribution · Patient group
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Unspecified measured outcome
The study needs further checking before its result can be interpreted.
Controlled study in people · Single ingredient · Unspecified population
Between-group comparison
Analysis coverage and paper counts
2 papers · 2 measured outcomes
2 papers held from direction counts
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Unspecified measured outcome
The study needs further checking before its result can be interpreted.
Review · Single ingredient · Unspecified population
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Unspecified measured outcome
The study needs further checking before its result can be interpreted.
Review · Unknown intervention · Patient group
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Unspecified measured outcome
The study needs further checking before its result can be interpreted.
Review · Unknown intervention · Unspecified population
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Stress and mood
What the research found
self-reported stress reactivity
The study reported improvement in this measurement.
Controlled study in people · Single ingredient · Unspecified population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Unspecified measured outcome
The study needs further checking before its result can be interpreted.
Animal study · indirect · Separable contribution · Unspecified population
This finding comes from animal or cell research. It does not establish the same effect in people.
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
1 papers held from direction counts
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Digestion and gut health
What the research found
digestive complaints
The study reported worsening in this measurement.
Controlled study in people · Single ingredient · General population
Between-group comparison
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Immune and respiratory health
What the research found
IL-1β, IL-6, COX-2, and iNOS
A change was reported in animal or cell research.
Cell study · indirect · Single ingredient · Unspecified population
This finding comes from animal or cell research. It does not establish the same effect in people.
The comparison could not be confirmed.
Analysis coverage and paper counts
1 paper · 1 measured outcome
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
Sleep
What the research found
sleep quality
A change was reported, but the comparison could not be confirmed.
Review · Single ingredient · Unspecified population
Analysis coverage and paper counts
1 paper · 1 measured outcome
Review overlap with primary papers is unknown; counts stay separate.
Direction counts are distinct papers within each row. Outcome contributions count endpoint results, so one paper may contribute more than once.
How to read research findings
How should I read research findings?
Research guidesNo clear difference and an uninterpretable result are different
A reported null comparison contains a result. An abstract without an interpretable comparison leaves a question unresolved.
Paper counts and study counts are different
Count original research separately from research that reanalyzes it. Publication volume is neither replication nor a quality rating.
Side effects and combination findings
Findings from this ingredient alone are shown separately from those involving another supplement or medication.
Caution findings
1
Findings from individual and combined use, plus reviewed cautions
Key precautions
No reviewed caution rules are available yet. Reported caution findings are shown below.
These findings were reported in studies. They do not predict an individual's experience.
Findings to review with care
Side effects reported for the ingredient alone are separated from findings involving another supplement or medication.
Side effects reported with this ingredient alone
Symptoms or adverse events reported in studies without another active ingredient.
Rey Auditory Verbal Learning Test (AVLT)1 papers
In a double-blind, placebo-controlled RCT, 300 mg/day Bacopa monnieri significantly improved verbal learning and memory acquisition in healthy older adults, though gastrointestinal side effects were reported.Human studies · Randomized controlled trial