Cannabidiolic acid

PhytochemicalCannabinoidBest with a meal

What is it

Cannabidiolic acid (CBDA) is the natural, acidic precursor to cannabidiol (CBD) found in raw, unheated cannabis and hemp. It converts to CBD through decarboxylation when heated or aged. CBDA is increasingly available as a 'full spectrum' cannabinoid supplement.

Evidence for 2 uses

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Nausea / vomiting

Mixed Evidence

Preclinical evidence supports anti-nausea effects via 5-HT1A receptor, but human trials are limited.

Anti-inflammatory effects

Mixed Evidence

Mechanistic evidence (COX-2 inhibition) is solid; human clinical evidence specifically for CBDA is limited.

How it works

CBDA has distinct biological activity from CBD. It is a potent inhibitor of cyclooxygenase-2 (COX-2), contributing to anti-inflammatory effects, and acts as an agonist at the 5-HT1A serotonin receptor, which may contribute to anti-nausea and anxiolytic effects. CBDA also interacts with the endocannabinoid system, though differently from THC and CBD. Preclinical studies have explored anti-inflammatory, antiemetic, anticonvulsant, and anxiolytic effects. Human clinical trials are limited.

Dosage

No established standard dose. Products typically contain 10-100 mg per serving. Some research suggests CBDA may be effective at lower doses than CBD due to higher receptor affinity at certain targets.

When and how to take it

WHEN: As needed or 1-2 times daily. HOW: Sublingual oils generally have faster onset than capsules. Take with food for fat-soluble cannabinoids if using oil-based products.

2 commercial forms

Compare the main delivery options and what they’re best suited for.

CBDA isolate / extract

Often sold as 'raw' cannabinoid products.

Stability concerns - converts to CBD with heat

Full-spectrum hemp extract

Most common natural source.

Contains CBDA, CBD, other cannabinoids and terpenes

Safety

Generally well tolerated in available reports. Long-term safety data are limited. Concerns about THC content in full-spectrum products (must be <0.3% by federal law in US hemp products).

Who should be cautious

Avoid in pregnancy and lactation (insufficient safety data). People on multiple medications should consult clinician/pharmacist. Quality varies widely across cannabinoid products; choose third-party tested products.

Interactions

Likely shares many interactions with CBD - inhibition of CYP3A4, CYP2C19, and other CYPs, affecting levels of many medications including anticoagulants, statins, antiepileptics, and immunosuppressants.

Food sources

Raw hemp / cannabis (unheated)

Amount
Variable
%DV
—

Frequently asked questions

Is CBDA the same as CBD?⌄

No. CBDA is the natural raw form; it converts to CBD through decarboxylation when heated. The two compounds have overlapping but distinct effects.

Is CBDA legal?⌄

Hemp-derived CBDA products with <0.3% THC are federally legal in the US, but state laws vary. Check local regulations.

References

Cannabidiolic acid on Wikidata — Wikidata link

Cannabidiolic acid (ChEBI:3359) — ChEBI link

Cannabidiolic acid (PubChem CID 160570) — PubChem link

Cannabidiolic acid on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Cannabidiolic acid (PubMed search) — PubMed link

Track Cannabidiolic acid with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.