I want to say something like this:
“These products are found to be healthfully risky.”
“These products are found to be healthily risky.”
“These products are found to be risky health-wise.”
“These products are found to be medically risky.”
Unfortunately “healthfully” and “healthily” seem to only be used in positive contexts, relating to good health rather than just to health/degree or nature of health in general. As a result, used like this it sounds like an oxymoron/contradiction.
“Medically” sounds too formal and also sounds more specifically focused on the risk of complicating other medical issues than about overall heath.
“Health-wise” is ok but it makes it difficult to combine other aspects into the same sentence, for example: “These products were found to be environmentally, economically, and ‘healthfully’ risky”.
I would say, “These products are found to have health risks,” or, “These products may negatively affect your health.”