Fermentation is the oldest method of food preservation dating back 8,000 years! Fermentation is basically controlling the environment to enable desired bacteria, yeasts and molds to flourish and convert the food to healthy compounds. The process improves nutrient availability, digestibility, and adds to microbial diversity. Many people consume fermented foods but aren’t aware they are fermented. Let’s take cheese, yogurt, vinegars, sour dough bread, Kombucha, Kefir, miso and fermented vegetables like sauerkraut or kimchi.
The best way to consume fermented foods is when the micro-organisms are live. But be aware that some processing methods kill the good organisms. This includes vinegar making, wine making, sour dough cooking, soy sauce and pasteurization. So best to look for live culture fermented foods or make them yourself!
This past year, Western University researchers and my colleague Conner Flynn, chef-teacher and Master Food Preserver, collaborated to create the Canadian Fermented Foods Initiative: Fermented Foods, A guide to Good Gut Living. (See link below.) This guide includes details about the health benefits of fermented foods and many recipes created by Connor for easy fermentation at home.
Health Benefits of Fermentation
The research into fermented foods is powerful, so much so, that fermented food consumption is being added to Canada’s Food Guide. The benefits include;
Gut Health
Fermented foods improve digestion, increase nutrient absorption and has shed light on the relationship between gut and brain demonstrating improvements in mental health as well.
Regulate Blood Sugar
Fermented foods lower blood sugar levels, improve insulin sensitivity and prevent insulin spikes.
Boosts Immune Function and Reduces Inflammation
Research evidence shows that fermented foods can reduce inflammatory markers and help reduce susceptibility to colds and flu. An interesting fact from the research is that mothers who consume fermented foods during pregnancy lowered allergies in their babies/children.
Boosts Health
Evidence is showing that fermented foods can lower “bad” cholesterol, improve blood pressure and overall blood vessel function.
There are many reasons to bring fermented foods into your diet. If you are buying food at the grocery store, look for fermented foods that say “raw”, “unpasteurized” or “contain live culture”. Then you know you are getting the real McCoy. Or make some fermented foods at home. Making a batch of sauerkraut can be done in a few minutes. Doing a one jar fermented pickle is simple and easy. For recipe ideas and great instructional videos, check out the Canadian Fermented Foods Initiative.
https://fermentedfoods.ca/wp-content/uploads/2025/12/WEB-VER-CFFI-1.pdf
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