How often per week is cannabis use OK?
There is no official "safe" frequency. Addiction specialists recommend for harm reduction: max 1–2×/week, cannabis-free days/weeks, low doses, not before 21, never daily. From 4+ uses/week, dependence risk rises sharply.
Key facts
- Max 1–2×/week "Lower-Risk"
- Daily: risk × 3
- Plan cannabis-free periods
- Never before 21
Detailed answer
No use is always safer than any use. Addiction Switzerland and CCSA Canada published "Lower-Risk Use Guidelines": (1) later start (after 21), (2) avoid high-potency (< 15 % THC preferred), (3) don't smoke (vape/edibles), (4) not daily (max 1–2×/week), (5) not before driving/work, (6) not in pregnancy, (7) not with psychiatric history. From 4×/week, dependence risk × 2; daily × 3 for Cannabis Use Disorder.