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Study

CBD Reduces Anxiety During Public Speaking in Healthy Adults

Taking 300 mg of CBD significantly reduced anxiety during a public speaking test compared to a placebo.

Stress & AnxietyMental WellnessHerbal Remedies
Study Credibility: Medium5.6/10Some supporting evidenceStudy has limitationsUse with caution
PublishedSep 2026Last reviewedSep 2026
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Summary

In plain language

Researchers found that taking 300 mg of cannabidiol (CBD) helped reduce anxiety in healthy individuals facing a stressful public speaking situation. In the study, participants who took this dose reported feeling less anxious compared to those who took a placebo. Interestingly, other doses, specifically 150 mg and 600 mg, did not show the same anxiety-reducing effects. This finding highlights the importance of finding the right dose to achieve the desired benefits. Seniors considering CBD for anxiety should discuss these findings with their healthcare providers to determine if it might be a helpful option for them.

Details

Use the full description to understand the study design, methods, and the limits of the findings.

This study involved 57 healthy men who were given either a placebo or varying doses of CBD (150 mg, 300 mg, or 600 mg) before participating in a simulated public speaking test, a common method for assessing anxiety.

  • The study found that only the group taking 300 mg of CBD experienced significantly reduced anxiety during the test compared to the placebo group.

  • No significant anxiety reduction was observed in those taking 150 mg or 600 mg of CBD, highlighting the importance of dosage.

  • It's important to note that the study only included healthy males, so results may vary for other populations.

Seniors interested in trying CBD for anxiety relief should consult with their healthcare providers to ensure it's a safe and appropriate choice for them.

Research Quality Score

Scored September 27, 2026 using rubric mq-1.8_2026-07-06.

Assessment

The study is a well-designed RCT with randomization and blinding, earning high marks for study design. However, it lacks explicit allocation concealment and power analysis, affecting bias control and statistical integrity scores. Transparency is limited by the absence of a pre-registered protocol. Conflicts of interest are significant due to patent involvement and industry ties. The study is not relevant to the target population of older adults, and journal quality is unassessed due to unspecified publication details.

Category Breakdown

CategoryScoreRating
Study design10.0/10
Bias control6.7/10
Statistical methods5.0/10
Reporting completeness5.0/10
Conflicts & funding5.0/10
Replication0.0/10
Relevance to chosen population0.0/10
Journal Reliability5.0/10

Additional Notes

The study investigates the effects of different doses of CBD on anxiety during a simulated public speaking test in healthy male adults, finding that 300 mg significantly reduces anxiety compared to placebo.

Assessed on the study's full text across 8 quality dimensions; conflict-of-interest disclosures were reviewed.

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