Any service or consultation performed by a registered Naturopathic Doctor is considered an eligible medical expense. That includes saliva tests, injections, IV therapy, prolotherapy, nutritional analysis, and even stress management.
On the other hand, vitamins and supplements, and many other products sold by Naturopathic Doctors aren't an eligible expense according to the CRA. So, while the service and cost of the test or analysis may be eligible, the supplements themselves may not be.
It can be tricky to figure out, so that’s why we always need a description of the services provided by a Naturopathic Doctor to determine eligibility. When in doubt, attach your receipt to the claim to help make sure the details are clear.