Cannabinoid mimics in chocolate utilized as an argument in court.
Level 4 - case-series / case-control
Case report combined with in vitro laboratory cross-reactivity testing
PubMed 10876983 · doi:10.1007/s004140050284
What was done
A forensic case was evaluated in which a defendant attributed a positive routine urine cannabinoid immunoassay screening to massive chocolate consumption. To test this defense, researchers synthesized the chocolate-related lipids N-oleoylethanolamide and N-linoleoylethanolamide, spiked them alongside N-arachidonoylethanolamide into urine samples, and evaluated them for immunological cross-reactivity.
What was found
The abstract reports no numerical values, concentrations, or sample sizes. It reports that none of the spiked urine samples tested positive on the cannabinoid immunoassay, indicating an absence of cross-reactivity.
Why it matters
This study provides forensic evidence refuting the defense claim that dietary chocolate consumption can produce false-positive urine screening results for cannabis via anandamide-related compounds.
Limits
The study is limited to a single legal case and an in vitro spiking experiment. The abstract does not specify the spike concentrations, the number of samples, the specific immunoassay brand or cutoff thresholds, nor did it measure in vivo urinary excretion following actual chocolate ingestion.
Cited by
- context Dark chocolate contains anandamide, which activates the brain's endocannabinoid system.