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Herb Profile
Coffee
Coffea arabica
Coffee (Coffea arabica) carries an editorial Grade A rating, but the studies recorded on this profile do not demonstrate that grade.
Last reviewed: •3 sources citedReport a correctionProfile-wide ·Unassigned
Use extra caution — Anxiety, insomnia, hypertension Details
- Evidence
- Editorial Grade Not Demonstrated By Recorded Studies
- Typical onset
- Varies by prep
- Safety rating
- Moderate caution
- Best for
- Energy, Stimulant, Cardiovascular, Athletic performance
- Avoid / review if
- Cardiovascular Disease, Stimulants
At a glance
From this profile's structured data- Evidence
- Editorial grade not demonstrated by recorded studies
- Safety
- Anxiety, insomnia, hypertension
- Profile context
- energy, stimulant, cardiovascular
Next stepsWhere to go next — guides & comparisons
Continue reading
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Safety
Safety & Cautions
Anxiety, insomnia, hypertension
Elevated caution
Caution level: Elevated. One caution category applies — read it before use.
- Stimulant-Like ProfileStimulant-like or activating caution language is present.
Detailed safety fields
Pregnancy, breastfeeding, and contraindications
- Cardiovascular Disease
- Stimulants
Safety classifications
- Stimulant-Like Profile: Stimulant-like or activating caution language is present.
Full safety note
- Anxiety, insomnia, hypertension
Safety labels
- Stimulant-Like Profile
Evidence
Evidence Summary
Evidence lens
Treat this profile as unresolved until source review is complete.
Needs reviewEditorial Grade Not Demonstrated By Recorded Studies
Human clinical evidence: Not the primary signal
Mechanistic / preclinical: Mechanism mapped — Vascular Function Support
Research maturity: Theoretical / mechanistic research — Mechanistic or unresolved evidence is kept separate from established human outcomes.
Safety boundary: Safety note available — Anxiety, insomnia, hypertension
This profile cites 3 human studies.
Study design details
Evidence Grade
Evidence grade not assigned
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Narrative review
- Risk of Bias
- High
- Consistency
- Not assessed
Strongest recorded design is a narrative review, drawn from 3 recorded studies, none of which measured an outcome in people.
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
- Strong
- Multiple RCTs, consistent direction, adequate effect size
- Moderate
- Some RCTs or consistent observational data in humans
- Preliminary / Mixed
- Animal or in-vitro only, or conflicting human data
- Traditional / Theoretical
- Traditional use only; no controlled human trials
Clinical Study Summaries (3)0 human evidence sources · 0 human trials · Participant totals not consistently reported · Consistency not yet classifiable
What the evidence actually shows
This table contains 3 structured sources, including 0 human evidence sources; 0 are human trials. A reliable participant total cannot be calculated because sample size is not consistently structured in the cited sources. Source-to-conclusion relationships are not classified in this structured set, so consistency is not yet classifiable.
Profile-wide evidence grade: see the profile grade above · Confidence: not separately assigned
What would change our conclusion?
Larger, well-controlled human trials using comparable populations, doses, preparations, and clinically meaningful outcomes could materially strengthen or weaken this conclusion. Replication in a different population or a high-quality synthesis resolving current disagreement could also materially change confidence.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
The anti-obesity and health-promoting effects of tea and coffee Sirotkin AV et al. · Physiol Res · 2021 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Neuroprotective Effects of Coffee Bioactive Compounds: A Review Socała K et al. · Int J Mol Sci · 2020 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Health Benefits of Coffee Consumption for Cancer and Other Diseases and Mechanisms of Action Safe S et al. · Int J Mol Sci · 2023 Background | Narrative review Summarizes selected literature without the full prespecified search and selection methods of a systematic review. | — | — | — | — | — | — | PubMed → |
Dosing & Timing
- Dose guidance
- 50 200 mg caffeine
How Coffee works
Simplified mechanism pathway based on preclinical and pharmacological evidence. Does not confirm clinical efficacy.
Mechanism Pathway — How Coffee Works
CompoundTarget / ReceptorMechanismEffect / Outcome
Mechanisms & biological pathways
Preclinical pathways. Proposed mechanisms from in vitro and animal research; these do not confirm clinical outcomes in humans.
- Vascular Function Support
Active Compounds
Key constituents studied in Coffee, with full pharmacology and safety profiles.
Compare related active botanicals
Explore botanicals with similar chemistry, effects, or safety considerations in the Botanical Activity Atlas.
Guides that use Coffee
Condition guides
Compare & Sourcing
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Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
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Botanical profile context
How to interpret Coffee
Coffee herb profile with evidence context, key research topics, source notes, safety context, and references presented in an evidence-first format. Use this herb profile as a starting point for evidence review, not as a recommendation to start a new supplement. Botanical products can vary by plant part, extract ratio, standardization, dose, and contaminant testing, so two labels with the same common name may not behave the same way.
When reviewing Coffee, compare the traditional-use context against the human evidence, mechanism notes, and safety cautions. Pay special attention to pregnancy, breastfeeding, liver or kidney disease, blood-pressure effects, sedation, stimulation, anticoagulant use, antidepressants, and any prescription medication overlap.
For product decisions, prefer transparent labels, named extracts, clear serving sizes, and third-party quality testing. Avoid treating a long list of possible mechanisms as proof that an herb will solve a specific condition.