The Dose

The Dose is currently on a summer break, but we wanted to feature some of our favourite shows while we’re away. This week, we've put together two episodes where we explore the science behind two popular wellness trends, including: What's the real evidence on injectable peptides and What do we know so far about psilocybin as a medical treatment? Have a listen. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

This week, we’re revisiting two episodes that tackle big questions about weight management and nutrition: How healthy is eating one meal a day? And, how should you adapt your diet while taking GLP-1 drugs? We explore what the evidence says about these popular approaches and what they mean for your health. For more episodes of this podcast, click this link.

Canada's Bill C-34 aims to restrict social media access for people under the age of 16. Supporters say it could help reduce rising rates of depression, anxiety and social isolation. But Dr. Shimi Kang, a psychiatrist and clinical associate professor at UBC, says the proposed restrictions need more clarity, noting that social media can also help marginalized young people find support. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Hundreds of thousands of visitors are expected in Toronto and Vancouver for the 2026 FIFA World Cup, but what does that mean for public health? Dr. Michelle Murti, medical officer of health for Toronto Public Health, says her team has planned for everything from infectious diseases to heat to food safety, and will be ready when the games kick off. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

An Ebola outbreak coursing through the Democratic Republic of Congo has experts worried it might rival the worst outbreak in history. Dr. Joanne Liu was president of Doctors Without Borders during that deadly 2014 outbreak in West Africa. As countries like Canada suspend travel from Congo, Liu says border closures don't help mitigate the spread of disease — only treating Ebola can. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

As ticks and tick-borne diseases rise across Canada due to warmer weather, experts are warning about two invasive species: the lone star and Asian longhorned ticks. Entomologist Jade Savage, creator and director of the eTick monitoring platform , says authorities are closely tracking them. In the meantime, she gives practical steps we can take to reduce the risk of tick bites. For our episode on anaplasmosis, an emerging tick-borne disease in Canada, click here. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

From seasonal allergies to infections, red eyes can have many causes. University of Calgary ophthalmologist Dr. Helen Chung talks about what’s behind eye redness, when drops can help, and when it’s time to see a doctor. For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Toronto and Hamilton are experiencing outbreaks of Legionnaires' disease, a serious type of pneumonia caused by Legionella bacteria. Infectious diseases physician Dr. Isaac Bogoch says it spreads through natural, as well as artificial water systems, like cooling towers, hot tubs, and plumbing, so it's important that buildings are up to code. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Three people have died after a hantavirus outbreak on a cruise ship, and several others are seriously ill. While hantaviruses are typically carried by rodents and rarely infect humans, health officials are investigating the cases. Infectious diseases specialist Dr. Zain Chagla explains what you need to know about hantavirus and how to avoid infection. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link .

Psychedelics are a hot topic, and a drug called ibogaine is receiving attention after a recent shoutout from U.S. President Donald Trump. University of Calgary psychedelics researcher Leah Mayo explains what ibogaine is, and why limited high-quality research has her hesitant to recommend it. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Erectile dysfunction is commonly thought of as a sexual health issue, but experts say the condition can reveal a lot about men's health. Dr. Dean Elterman, a urologist at the University Health Network in Toronto, says ED can be connected to a host of other health problems including diabetes and heart disease. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Some private clinics in Canada are offering whole-body MRIs that can run thousands of dollars. They claim these scans can detect a range of issues, and can find cancers in the early stages. Dr. Iain Kirkpatrick, the head of radiology at St. Boniface Hospital in Winnipeg, explains what a whole-body MRI can - and can’t - tell you about your health. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Young female athletes are considerably more likely to tear their anterior cruciate ligaments, or ACLs, than young men. Dr. Marie-Lyne Nault is an orthopedic surgeon and researcher specializing in pediatric sports medicine in Montreal. She explains why the risk is higher, and how women and teens can significantly reduce the risk of a tear. For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Meningococcal disease is a rare but potentially lethal bacterial infection. Two young people died in a recent outbreak in the U.K. Infectious diseases specialist Dr. Isaac Bogoch explains what you need to know about this disease and how to protect yourself. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Psilocybin, the active compound in magic mushrooms, shows promise for treating depression and other mental health conditions. Dr. Joshua Rosenblat, a psychiatrist and researcher at the Krembil Brain Institute at UHN, explains the latest research and its potential for future treatments—though it's still illegal in Canada.

Wellness influencers on social media are touting injectable peptides as a new wonder drug, claiming compounds like BPC-157 can improve muscle strength, boost recovery times and even increase longevity. But University of Alberta health misinformation expert Tim Caulfield says the evidence doesn’t support the hype, and warns people against injecting unregulated substances. For transcripts of The Dose, please visit: lnk.to/dose-transcripts. Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

A recent survey found roughly three million Canadians are taking GLP-1 medications like Ozempic and Mounjaro. The drugs can reduce appetite and cravings, and could also affect the body’s fat and muscle stores. Jennifer Brown, director of program innovation at Obesity Canada and a registered dietitian, says people on GLP-1 drugs may need to be more intentional about what they eat — from protein and micronutrients to fibre and fluids. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Researchers in Canada and around the world are exploring ways stem cells could help treat conditions like diabetes, Parkinson's and heart disease, but the hype sometimes outpaces the science. Neurosurgeon and researcher Dr. Sheila Singh of McMaster University and King’s College London explains what stem cells can—and can’t—do, including why they’re no miracle cure for aging. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

Lung cancer is the deadliest cancer in Canada, and a growing number of never-smokers are getting diagnosed. Dr. Nicole Ezer, director of McGill University Health Centre's lung cancer screening centre, explains why this is happening and how workplace and environmental exposures may be contributing. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.

The One Meal a Day Diet, or OMAD, is a more extreme version of intermittent fasting that's been gaining in popularity. Its proponents say it can help people lose weight by eating a day’s worth of calories in a single meal. Family doctor and nutrition expert Dr. Mary Sco says there's little research suggesting that OMAD is more effective than other intermittent fasting diets. For transcripts of The Dose, please visit: lnk.to/dose-transcripts . Transcripts of each episode will be made available by the next workday. For more episodes of this podcast, click this link.