For decades, Canada gradually shifted its thinking, and its language, from mental illness to mental health. That evolution was about much more than terminology. It broadened the conversation beyond diagnosis and treatment to include prevention, wellbeing, resilience and the conditions that help people thrive.
For substance use, a similar shift is emerging toward a broader understanding of Substance Use Health.
And it comes at an important time. Across Canada, the gap between need and available support remains significant. Waitlists are long. Pathways are fragmented. And too many people are still left without access to support when and where they need it.
Mental health and substance use health services have historically developed as separate systems, a divide that continues to shape how people access and experience care.
The challenge is not simply one of capacity or the need for additional programs and services. It is also about how we understand health, and the systems we build around that understanding.
The Community Addictions Peer Support Association (CAPSA) has brought the principles of substance use health into the national conversation. For too long, substance use has been positioned within an “addictions” frame. Within that frame, a dangerous assumption has gone largely unchallenged: that any relationship with substances is a disorder waiting to be treated. That assumption has shaped who gets help, who gets stigmatized and who never seeks care at all.
By advancing an understanding of substance use as a spectrum of health, CAPSA is challenging that default and interrupting the stigma that leads to the discrimination of people who have any relationship with substances. Stigma does not live only in attitudes. It lives in language, in system design and in the frameworks that shape how care is delivered. Dismantling it requires more than awareness. It requires a different starting point.
Substance use disorders require compassionate, evidence-informed care. And they represent only one part of a much broader picture. CAPSA’s Substance Use Health Spectrum makes that picture visible. It is built on the recognition that all aspects of our health exist on a spectrum, and that people’s needs, strengths, and choices evolve. The Spectrum is not a classification tool. It is a way of seeing people as whole.
Most people picture substance use as a line. Non-use at one end, disorder at the other. That framing can be challenging, creating a hierarchy that positions some people as healthy and others as broken. The Spectrum is circular because health is not linear. Neither end is inherently good or bad. Wherever someone fits within it, substance use has health impacts and can carry both risks and benefits. All people should be able to see themselves in it, across all pathways, experiences, needs and choices.
This broader understanding of health is increasingly being reflected across the sector. Organizations such as Stepped Care Solutions (SCS) are advancing how a health-based perspective can inform more person-centred, flexible and choice-driven systems of care. Through Stepped Care 2.0 (SC2.0), SCS has worked alongside jurisdictions, health systems, community organizations and post-secondary institutions to build systems that offer a range of evidence-informed options and empower people to choose supports that align with their goals, preferences, and circumstances.
Like the Spectrum, SC2.0 is built for movement. It acknowledges that care is not linear. People’s needs, strengths and preferences can change, and they may move between different types and intensities of support. The model supports flexible systems that can respond to those changing needs. Together, these efforts signal a broader shift toward more inclusive, health-based approaches to substance use health.
This is not theoretical. It is already visible in the innovations emerging across Canada’s health system. Integrated Youth Services, for example, help communities organize care around young people rather than organizational boundaries. By bringing together mental health and substance use health supports, primary care, housing, education, employment and community supports, they recognize that people’s health is interconnected and that no single service can meet all needs.
Globally, there is also a growing shift toward public health and human rights-based approaches to substance use. The World Health Organization is helping advance this perspective internationally, supporting a more comprehensive approach to prevention, harm reduction, treatment, recovery and wellbeing.
These are not separate conversations. They are different expressions of the same idea: health systems work better when they are organized around people, their health and their choices, not diagnoses, behaviours or organizational boundaries.
Changing one phrase will not transform Canada’s health system. But language does influence how we define problems, what we measure, where we invest and ultimately the systems we build.
If Canada is serious about building more connected, person-led and flexible systems of care, then substance use health is more than a change in terminology. It recognizes it as interconnected with mental and physical health and challenges us to think differently about how we design systems of care. It asks us to begin somewhere different.
Not with the disorder. Not with the diagnosis. With the person, and with the understanding that no one stands outside the spectrum.
