Kymata Health CBD Guide
CBDA (Cannabidiolic acid)
The raw, acidic form of CBD in the living plant. Heat turns it into CBD. Most of the research is in animals; in dogs it appears in studies of a combined CBD + CBDA oil.
Level of human evidence: Preclinical only. Numbers in brackets link to the sources at the end of the page.
What it is
CBDA is what the hemp plant actually makes. Heating (decarboxylation) converts it to CBD, so "raw" or CBDA-rich products skip or limit that step.
How it works
In rodents, CBDA reduced nausea and vomiting by enhancing serotonin 5-HT1A receptor activity, at much lower doses than CBD.[1]
Human studies
There are no completed randomized trials of CBDA alone in people that show a health effect. Claims that CBDA "works better than CBD" in humans are not supported by human trials.
In dogs, an oil containing both CBD and CBDA (about 2 mg/kg twice daily) was used in the Cornell osteoarthritis trial, and CBDA reached higher blood levels than CBD after oral dosing.[2][3]
Doses used in studies
No established human dose. Veterinary studies dosed CBD + CBDA together at about 2 mg/kg twice daily.[2]
Drug interactions
Human interaction data are lacking. Because CBDA is sold mixed with CBD, assume the CBD interactions (CYP450, clobazam, warfarin) apply.[4]
Safety
Safety in people has not been studied in trials. In the dog trial, the CBD + CBDA oil raised a liver enzyme (alkaline phosphatase) without symptoms.[2]
Legal status
CBDA is not THC, but CBDA products made from full-spectrum extract can still contain THC above the new per-container limit.
From December 11, 2026, federal law counts a finished hemp product as hemp only if the whole container holds no more than 0.4 mg of total THC (including THCA and THC-like cannabinoids). Full-spectrum products usually hold far more than that per bottle, so THC-free (isolate or verified broad-spectrum) products are the safe choice. State rules differ and can be stricter.[5]
Other cannabinoids
Compare brands on lab data: best CBD oils, ranked.
Sources
- Bolognini D et al. Cannabidiolic acid prevents vomiting and nausea-induced behaviour by enhancing 5-HT1A activation. Br J Pharmacol 2013
- Gamble LJ et al. Pharmacokinetics, safety and clinical efficacy of CBD treatment in osteoarthritic dogs. Front Vet Sci 2018
- Wakshlag JJ et al. Pharmacokinetics of CBD, CBDA, THC, THCA and metabolites in canine serum after three oral forms. Front Vet Sci 2020
- Geffrey AL et al. Drug-drug interaction between clobazam and cannabidiol. Epilepsia 2015
- Congressional Research Service: Changes to the statutory definition of hemp (IF13136)