Cannabis gummies dosage chart
- 1 mg to 2.5 mg: first use, no tolerance, age 21 and over
- 2.5 mg to 5 mg: low tolerance, daytime use
- 5 mg to 10 mg: standard single serving in most legal US states
- 10 mg to 20 mg: regular users with tolerance
- 20 mg and above: heavy tolerance; higher chance of nausea, anxiety, and fast heart rate
These ranges come from state labeling rules and clinical reports, not from a formula based on body weight. No US federal agency publishes a mg-per-kilogram THC dose.
Why 10 mg is the standard unit
Colorado caps one edible serving at 10 mg THC and one package at 100 mg. Washington sets the same limits for recreational edibles. A 100 mg bag with 10 gummies holds 10 mg per piece. The same bag with 20 gummies holds 5 mg per piece. Read the label for mg per piece, not mg per package.
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Onset and duration
Edible THC passes through the liver. Onset runs 30 minutes to 60 minutes. Peak blood levels arrive at 2 hours to 4 hours. Effects fade over 6 hours to 8 hours. Wait 2 hours before a second dose. A second piece taken at 30 minutes stacks on the first one.
Factors that shift your dose
- Last meal: food delays onset and raises peak absorption
- Liver enzymes: CYP2C9 and CYP3A4 variants change how fast THC clears
- Frequency of use: daily use raises tolerance
- Other drugs: alcohol and sedatives add to impairment
- Age: adults over 65 report stronger effects at the same mg
Groups at higher risk
The CDC tracks edible poisonings in children under 6. Keep gummies in a locked container. NIDA lists pregnancy, heart conditions, and a personal or family history of psychosis as reasons to avoid THC or talk to a clinician first.
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If a dose goes wrong
Common signs: rapid heart rate, panic, vomiting, trouble standing. Stay seated, drink water, and wait. Call Poison Control at 1-800-222-1222 for a child who ate a gummy. Call 911 for chest pain, seizure, or a person who cannot stay awake.