A Calgary naturopathic clinic's claim that it has developed a supplement to help prevent and treat COVID-19 is "infuriating" to an expert in debunking health claims.

Calgary Integrative Medicine claims it will have a new supplement available to help with the outbreak next week.

"Boost your immune system! We have formulated a supplement to help prevent, and hopefully help treat the virus," the email, which was sent to patients on Friday, reads. "Little is known about the treatment of this virus, but there are various agents showing promising results."

CBC News contacted the clinic, but has yet to receive a response.

Four cases of COVID-19, caused by the novel coronavirus, were found in Alberta this week. Three cases are presumptive and one has been confirmed.

As the outbreak spreads so does misinformation, said Timothy Caulfield, a Canada Research Chair in health law and policy at the University of Alberta.

"It's infuriating. They are leveraging the fear and confusion around coronavirus to sell a product that almost certainly does not work," Caulfield said. "There's no evidence that supplements help in this context at all, and when they are making a claim like that … I think it's really problematic. And I hope regulators take a look at it."

Caulfield said evidence is still being accumulated about the coronavirus and there are no known treatments so far.

"Much of what's offered in most naturopathic clinics — and this is something we've actually studied systematically — has very little evidence to support it," he said. "This is part of a larger pattern, but when it's being in the context of a serious public health issue like coronavirus, it's particularly problematic."

Caulfield has made a career of debunking pseudoscience and unproven health advice.

He recently wrote an article for Health News Review explaining how the evidence around supplements is "mixed" at best, and said there's no solid proof that supplements can boost the immune system.

The College of Naturopathic Doctors of Alberta, which self-regulates the profession, states that naturopaths must advertise in a way that is factual, verifiable, and does not deceive or promote a demand for an unnecessary service.

CBC News has reached out to the organization to ask if this newsletter complies with its regulations.

Caulfield said it's vital to listen to trusted public health agencies and follow proven prevention advice, like washing your hands and staying home if you're sick.

"I get it. There's so much misinformation out there and there's also real information that's emerging so it's no surprise that people are confused. Listen to those trusted voices that are aggregating information, the World Health Organization, the Public Health Agency of Canada."