Cannabis can affect health and functioning, and it is not risk-free. Health Canada’s current risk guidance describes potential effects and factors that can increase concern. This page is a starting point for public information, not a diagnosis, treatment recommendation or substitute for professional care.
Use primary public-health information
Health Canada’s guide, Understanding the health effects of cannabis and how to reduce risks, provides a source-based overview. Its consumer cannabis information explains additional federal information. Consult those sources directly because details and recommendations can be updated.
Personal circumstances differ
Risk is not identical for every person or situation. Age, health, frequency, product characteristics and other substances may be relevant. This guide does not try to assess an individual’s risk. For a personal health concern, speak with a qualified health professional; seek urgent local help if there is an immediate emergency.
Related practical information
See cannabis and driving, safe storage and accidental exposure. These topics have distinct risks and should not be reduced to a single assurance or rule of thumb.
Primary references
Health Canada: Understanding cannabis risks and reducing harm Health Canada: Cannabis consumer informationFor how we use sources and handle updates, see editorial standards. To flag an issue, report a correction.