A novel indexing system classifying cannabis flower by cannabinoid and terpene combinations found that different chemovars were associated with distinct patient-reported outcomes for symptom relief and side effects.
Cannabis researchers, dispensary professionals, medical cannabis patients, and those interested in the entourage effect.
204 users tracked; different cannabinoid-terpene chemovars linked to distinct outcomes
What the researchers found
The Vigil Index of Cannabis Chemovars created a scalable classification system combining major cannabinoid and terpene contents. The most commonly consumed chemovars showed different effectiveness profiles and side effect patterns across 204 users.
Why it matters
The cannabis market treats products as interchangeable within broad categories (indica, sativa, hybrid). A chemistry-based classification system could help patients and clinicians identify which specific formulations work for their needs.
The numbers in context
204 users from 2016-2021 tracked via mobile app. Cannabis flower classified by cannabinoid and terpene content into chemovars. Different chemovars associated with distinct treatment effectiveness and side effect profiles.
How the study worked
Observational study using a mobile app. 204 people tracked cannabis flower consumption between 2016-2021. Cannabis products were classified by cannabinoid and terpene profiles into chemovars. Patient-reported outcomes compared across chemovar categories.
What this study cannot tell us
Small, self-selected sample of app users. Non-randomized, observational design. Cannabis product testing may not be perfectly accurate. Patient-reported outcomes are subjective. Chemovar categories may oversimplify complex plant chemistry.
How to read the evidence
Novel observational framework with small sample. Proof-of-concept for a classification system that needs larger validation.
When this study was published
Published 2023. Data from 2016-2021.
The bigger picture
Moving from strain names to chemical profiles represents a fundamental shift in how cannabis products are understood. If specific cannabinoid-terpene combinations consistently produce different effects, it could transform cannabis from a black box into precision medicine.
Questions still open
- Would larger validation studies confirm chemovar-outcome associations? Could this indexing system be adopted by dispensaries to improve product selection guidance?
Common questions
Does the type of cannabis strain matter for medical effects?
What is a cannabis chemovar?
Read the original research
Systematic combinations of major cannabinoid and terpene contents in Cannabis flower and patient outcomes: a proof-of-concept assessment of the Vigil Index of Cannabis Chemovars.
Journal of cannabis research, 5(1), 4
Citation
Vigil, Jacob Miguel; Stith, Sarah See; Brockelman, Franco; Keeling, Keenan; Hall, Branden. (2023). Systematic combinations of major cannabinoid and terpene contents in Cannabis flower and patient outcomes: a proof-of-concept assessment of the Vigil Index of Cannabis Chemovars.. Journal of cannabis research, 5(1), 4. https://doi.org/10.1186/s42238-022-00170-9
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