Canadian Fermented Foods Initiative

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Canadian Fermented Foods Initiative

A national effort to explore and advance the role of fermented foods in health and food systems.

Funded by the Weston Family Foundation, led by academic experts from Western University & Lawson Research, U of Calgary and U of Alberta!

10/02/2026

🍎 Could apple c***r vinegar (ACV) help address some of the metabolic side effects associated with psychiatric medications?

In this small 3-month study, researchers tested a delayed-release apple c***r vinegar intervention in 11 young adults taking psychiatric medications. The intervention was well tolerated, with preliminary changes observed in the gut microbiome and metabolic measures, including cholesterol.

These early findings are promising, but larger controlled clinical trials are needed to determine whether ACV can meaningfully improve metabolic health in this population.

👉 Swipe to learn about the study, and visit www.fermentedfoods.ca for more CFFI Research Highlights.

09/30/2026

Not all fermented foods contain live microbes — and that doesn’t mean they’re without benefits! 🦠🥛🥬

Research suggests that some benefits of fermented foods may come from live microorganisms, but emerging evidence also shows that non-viable microbes and their components may have biological effects. And even when live microbes aren’t present, fermentation can transform foods in beneficial ways, influencing nutrients, bioactive compounds, digestibility, and flavour.

👉 Swipe for a few tips on finding fermented foods with live microbes.

09/21/2026

Could fermented foods help protect us from heavy metals? 🦠🥛🥬

Our new review in Trends in Food Science & Technology explores emerging evidence that fermented foods and their microbes, metabolites, and food matrices may help bind heavy metals in the gut, reduce their absorption, support the intestinal barrier, and promote their elimination.

The mechanisms are promising, but the science is still emerging. Most evidence comes from laboratory and animal studies, and well-controlled human trials are now needed to determine which fermented foods, microbes, and intake levels may be most effective.

📖 Read the full review:
doi.org/10.1016/j.tifs.2026.106049

09/17/2026

How often are Canadians eating fermented foods—and what motivates their choices? 🇨🇦🥛🥬

Our new study in Food Science & Nutrition explores fermented food consumption across Canada, providing new insights into what Canadians eat, how often, and why.

These findings can help inform future research, public health strategies, and efforts to better understand fermented foods in the Canadian diet.

📖 Read the publication

09/01/2026

🍹 CAN FERMENTED FOODS CONTAIN ALCOHOL?

Yes — some can.

Alcohol (ethanol) can be naturally produced when yeasts ferment sugars. This means that fermented beverages such as kombucha and kefir may contain small amounts of alcohol even when they are not intended to be alcoholic.

Here’s what to know 👇

🍹 LOW LEVELS CAN OCCUR NATURALLY
Kombucha, kefir and other fermented beverages can contain low levels of alcohol as a normal by-product of fermentation.

⏳ ALCOHOL LEVELS CAN CHANGE
If live yeasts remain active, fermentation can continue after bottling. Alcohol levels can therefore increase during storage and distribution, particularly if products are not properly refrigerated.

🏠 HOME FERMENTATION REQUIRES EXTRA ATTENTION
Alcohol levels can be more variable in homemade and artisanal products because fermentation conditions may be less tightly controlled.

🏷️ LABELLING MATTERS
In Canada, beverages containing 1.1% alcohol by volume (ABV) or more are required to declare their alcohol content on the label.

⚠️ SOME PEOPLE SHOULD BE PARTICULARLY CAUTIOUS
Even low levels of alcohol may be relevant for pregnant individuals, children, and others who need or choose to avoid alcohol.

THE TAKEAWAY
Understanding how a product is made, stored and labelled matters — especially for fermented beverages where alcohol can continue to develop over time.

Better consumer education, monitoring and labelling approaches can help people make informed choices.

08/28/2026

🇨🇦 WHAT 4,045 CANADIANS TOLD US ABOUT FERMENTED FOODS

We’re excited to share a new publication, providing new insights into how Canadians consume, perceive, and understand fermented foods.

Despite growing interest in fermented foods and their potential health benefits, we have had limited national data on how these foods fit within the Canadian diet. To help address this gap, we surveyed 4,045 adults across Canada, examining fermented food consumption, motivations, perceptions, and knowledge.

WHY IS THIS IMPORTANT?
Health Canada’s Evidence Review Cycle for dietary guidance considers not only evidence on food and health, but also its relevance within the Canadian context—including consumption patterns, food literacy, behaviours, attitudes, and beliefs.

This study helps provide that population-level context for fermented foods.

As the clinical evidence on fermented foods continues to develop, understanding their place within the Canadian diet will also be important for informing future research, knowledge translation, dietary guidance, and public health strategies.

A sincere thank you to everyone involved in making this national study possible, and to the Weston Family Foundation for its continued support of CFFI.

📄 Read the publication: https://onlinelibrary.wiley.com/doi/10.1002/fsn3.72287

08/12/2026

Find recipes to get started at https://fermentedfoods.ca/fermented-foods-recipes/ 🧑‍🍳

07/31/2026

Why and when is salt needed?

Salt plays an important role during fermentation. It helps create the right environment for beneficial microbes to grow while limiting the growth of unwanted microorganisms, contributing to both food safety and quality.

Salt is one of the most important factors in successful vegetable fermentation.

When vegetables are mixed with the appropriate amount of salt, it:

🦠 Selects for beneficial microorganisms. Salt inhibits many spoilage and pathogenic microorganisms while allowing salt-tolerant lactic acid bacteria to become the dominant microbes.

📉 Reduces water activity. By drawing water out of plant tissues through osmosis, salt lowers water activity, making the environment less favourable for undesirable microorganisms.

🥬 Supports natural brine formation. The released water forms a brine that keeps vegetables submerged, limiting oxygen exposure and promoting the anaerobic conditions preferred by lactic acid bacteria.

🥒 Maintains texture. Salt slows the activity of plant enzymes that soften vegetables, helping fermented vegetables remain crisp throughout fermentation.

As lactic acid bacteria metabolize the natural sugars in vegetables, they produce organic acids that lower the pH. Together, the appropriate salt concentration and acidification create a stable fermentation that helps preserve the food while contributing to its characteristic flavour and texture.

💡 Different vegetables contain different amounts of water and natural sugars, so the ideal salt concentration can vary. Following tested recipes and measuring salt by weight rather than volume helps produce more consistent and safer fermentation results.

Reference:
Microbiology and Technology of Fermented Foods. 2nd ed. Wiley-Blackwell; 2018. ISBN: 978-1-119-02744-7

07/29/2026

🧂 Should you avoid fermented foods because of their salt content?

Not necessarily.

Salt (or sodium) content varies widely across fermented foods. Some products—such as certain kimchi, sauerkraut, and fermented vegetables—can contribute meaningful amounts of sodium to the diet, while others, including yogurt, kefir, and many fermented beverages, are naturally low in sodium.

Current evidence does not support avoiding fermented foods as a category based on sodium content alone. Rather than focusing on a single nutrient, fermented foods should be considered in the context of their overall nutritional composition, food matrix, level of processing, and their role within an overall healthy dietary pattern.

👩‍⚕️ If you have high blood pressure, kidney disease, heart failure, or another medical condition that requires limiting sodium, speak with your healthcare provider or a registered dietitian. They can help you choose fermented foods that fit your individual health needs.

👀Additionally reading the Nutrition Facts table can help you compare sodium content across fermented food products, as sodium levels can vary considerably between brands and food types.

The good news? Researchers are actively developing lower-sodium fermentation methods that maintain food safety, quality, and flavour, making fermented foods even more accessible to a wider range of consumers.

As our understanding of fermented foods continues to grow, recommendations should consider the whole food, not just a single nutrient.

06/27/2026

🦠🌍 Happy World Microbiome Day!

The microbiome is all around us—and within us. From helping us digest food and supporting our immune system to protecting pollinators and influencing fermentation, microbes play remarkable roles in our daily lives.

Over the past few weeks, we've introduced some of the incredible MSc students exploring these hidden microbial worlds. Now it's your turn!

🧠 How much do you know about the microbiome?
Swipe through our quiz and see how many you can get right!

Share with others to spread the knowledge :)

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