So I had a detailed post on how you have opened yourself up to significant liability with your approach. and the system seems to have eaten it after I made some raw HTML edits to it to improve formatting.
The problem you face fundamentally is that you are making diagnostic decisions and recommendations for which you do not have direct evidentiary proof of efficacy. Now I don't know about Canadian law, but this does put you crosswise with the FDA. This is what caused the FDA to shut down 23&Me.com
And since your website currently is accessible from both the USA and Europe (I've not tried from other proxies) - you are exposed to the liability and regulatory issues from those regions.
If you wish to delve into what the FDA sees as "medical devices" - I recommend you go to our website and download the free mHealth Guide (you just have to register to get access to it https://clearroadmap.com) while it is aimed primarily at mHealth software and hardware, SaaS falls into the same categories.
Now it wouldn't take a large change in the phrasing of your content to avoid these issues (rather than personalizing the suggestions, couch them in statistics and explicit generalizations) - but that may change the attractiveness of what you are seeking to do.
the danger signs come in when you wrote:
we're not clinically proven yet, so Dr. can't recommend our approach. Working towards Canada Health approval.