Tyana Grundig is an investigative journalist with CBC Marketplace.
Latest from Tyana Grundig
Shrimp containing antibiotic-resistant bacteria found in Canadian grocery stores
A CBC Marketplace investigation has found worrying levels of antibiotic-resistant bacteria on imported shrimp bought at major grocery stores across Canada.
Some baby foods sold in Canada would be 'illegal in Europe,' arsenic testing shows
A CBC Marketplace-Radio-Canada investigation into baby cereals and snacks has found that the arsenic levels in two Canadian rice-based products would see them pulled off store shelves in Europe, according to one of the world's leading arsenic experts.
Social engineering is the new method of choice for hackers. Here's how it works.
Is your name and your phone number all it takes for a hacker to take over your cellphone account? Marketplace's latest investigation has found that just a few pieces of personal information could leave you vulnerable.
American apple juice is clearly labelled, but Canada's rules leave consumers in the dark
Bearing glossy red fruit, phrases like "Canada Choice" or "prepared in Canada," and other subtle hints, the packaging on apple juice gives Canadian consumers the impression they're drinking apples from this country.
Hidden camera reveals how bank employees mislead and upsell on pricey credit card insurance
A Marketplace hidden camera investigation is raising questions about how bank employees are selling a pricey and controversial product marketed to help with credit card payments if you lose your job or get sick.
'There is no validity': Unproven blood tests for food sensitivity widely offered in Canada
Two of Canada's biggest labs promote and offer something known as IgG food tests at their labs, marketed as a way to test for food sensitivities. But medical experts call these blood tests "irrelevant," "unvalidated" and "inappropriate" when it comes to tracking food intolerance.
Debt, pain and more surgery: The true cost of gastric band procedure hyped as weight-loss fix
The commercial made it seem so easy — "You're in, you're out and you're shopping … what could be better?" But Barbara Litt's gastric band surgery couldn't have gone worse. It left her in debt and in pain. And she's not alone.
'We're designing minds': Industry insider reveals secrets of addictive app trade
The average Canadian teenager is on track to spend nearly a decade of their life staring at a smartphone, and that’s no accident, according to an industry insider who shared time-sucking secrets of the app design trade.
RCMP says free trial scams are fraudulent, but credit card companies make victims pay
Every week, Marketplace receives dozens of emails from Canadians reporting all kinds of consumer concerns and deceptive schemes. Here's an in-depth look at the one scam that has generated more angry emails than all the rest.
Health Canada licensing of natural remedies 'a joke,' doctor says
Natural and homeopathic products, which are often sold alongside over-the-counter pharmaceutical drugs on store shelves, may be backed by little to no scientific evidence, and there’s no way for consumers to tell.