Diabetes Canada says it's received a surge in reports from people who've seen ads for or bought products that use the charity's logos without authorization.

Since January, Diabetes Canada says it's had over 300 calls to its 1-800 line and emails from people reporting misleading advertisements for diabetes products that have the charity's logo.

Diabetes Canada isn't the only organization being affected. Products ranging from purported medications and supplements to devices that claim to be blood glucose monitors are also carrying the logos of Obesity Canada and Health Canada. Some of the groups say they want the ads taken down and social media companies are doing that, but new ads keep appearing.