CBD and Dementia: What Families Should Know
When a loved one is living with dementia, families often look for every possible way to ease symptoms and improve quality of life. It’s a natural question, you want every possible tool to help. Reza* give us a good inspiration , what remains uncertain, and how CBD fits into the bigger picture of dementia care.
The short answer? CBD may help with some dementia symptoms, but it is not a cure.
What the Research Shows
Most research on CBD and dementia is in its early stages. The studies so far are small, short-term, and use a wide range of doses. Still, scientists see potential because of how CBD interacts with the brain.
How CBD might help:
Anti-inflammatory effects: may reduce brain inflammation and protect against stress
Symptom management: can ease anxiety, improve sleep, and reduce agitation or repetitive behaviours
What studies suggest:
Some small studies show CBD may reduce agitation and help with sleep.
Families sometimes report fewer restless nights or less wandering.
There is no solid evidence that CBD improves memory or slows cognitive decline.
The Challenges
Before considering CBD, it’s important to understand the limits:
Dosing is unclear. Studies have tested anywhere from 2.5 mg to 300 mg per day, and results vary.
Drug interactions matter. CBD affects liver enzymes and may increase the effect of other medications, especially blood thinners.
Product quality varies. In Canada, CBD products are regulated, but supplements can differ in strength and purity. Choosing third-party tested products is critical.
Realistic Expectations
CBD may help with:
Sleep disturbances
Anxiety and restlessness
General comfort
CBD likely won’t help with:
Memory loss
Slowing disease progression
Reversing cognitive decline
If Families Want to Try CBD
Talk to a doctor first. Review current medications and set realistic goals.
Don’t skip proven care. Routines, physical activity, social engagement, and appropriate medications remain essential.
At better homecare, we focus on:
Small, consistent care teams (regular and backup caregivers who know your loved one well)
Calm, familiar routines that ease anxiety
*Reza Hosseini Ghomi, MD, MSE, is a neurologist and researcher based in Boston, Massachusetts. His work focuses on brain health, dementia care, and advancing practical approaches to improve quality of life for patients and families.
**CBD is a potential comfort measure for dementia—not a cure. If you choose to explore it, work closely with your medical team, start cautiously, and keep expectations realistic.
***Disclaimer: This article is for general information only and is not medical advice. Always consult with a healthcare professional before starting or changing any treatment.
