SynBio Milk in Canada: What Parents Need to Know
You may be seeing stories about “lab-grown milk” or synthetic dairy products in the news…
But what many Canadians may not realize is that a synthetic milk protein produced using genetically engineered microorganisms was approved for use in Canada’s food supply back in 2024.
Developed by biotechnology company Remilk, the ingredient is produced through a process known as precision fermentation and can be added to products including protein powders, nutrition bars, meal replacements, baked goods and dairy products.
For families concerned about transparency, informed consent and children’s health, the approval raises important questions about how these novel ingredients are entering the food supply—and whether consumers are being adequately informed.
What Is SynBio Milk?
Synthetic biology, often shortened to “SynBio,” uses genetically engineered microorganisms to manufacture substances that would normally come from plants or animals.
In Remilk’s case, scientists insert genetic instructions for a milk protein into yeast. The yeast is then grown in industrial fermentation tanks, where it produces beta-lactoglobulin, a major whey protein found in cow’s milk. The resulting protein is purified and added to food products.
Supporters describe precision fermentation as a sustainable and innovative technology. Critics argue that consumers are being asked to accept increasingly complex engineered food ingredients without meaningful public discussion about potential risks, long-term health impacts or consumer choice.
Most Canadians have likely never heard of precision fermentation, yet products made using this technology may already be entering the marketplace.
Hidden in Processed Foods
Unlike traditional milk, SynBio milk proteins are not currently being sold as bottled or carton milk on Canadian grocery store shelves. Instead, Health Canada’s approval allows the ingredient to be incorporated into a wide variety of processed foods.
Instead, they can be incorporated into a wide variety of processed foods. According to Health Canada’s approval, Remilk’s protein may be used in products such as:
- Protein powders and protein shakes
- Nutrition and energy bars
- Meal replacements
- Baked goods
- Dairy products
- Breakfast cereals
- Beverages
- Snack foods
Many of these products are marketed to health-conscious consumers, athletes, teenagers and families.
As synthetic biology-derived ingredients become more common, consumer advocates are questioning whether Canadians are receiving enough information to make informed choices about the foods they purchase. While the technology itself is unfamiliar to most consumers, ingredients produced through precision fermentation could become increasingly common in everyday food products.
New Research Raises Questions
Supporters of precision-fermented dairy proteins often describe them as equivalent to the proteins found in conventional milk. However, a recently published peer-reviewed study comparing a precision-fermented milk product with conventional cow’s milk reported notable differences.
Researchers found that the synthetic product differed nutritionally from cow’s milk and identified numerous compounds originating from the production organism. According to an analysis of the study, researchers identified 93 uncharacterized fungal metabolites and 236 fungal proteins in the precision-fermented product. The study authors concluded that the synthetic product and conventional milk were not nutritionally equivalent, despite sharing certain protein components.
The findings challenge claims that precision-fermented dairy products are simply identical replacements for traditional dairy foods. They also raise broader questions about how novel foods are assessed and whether consumers are receiving a complete picture of how these products compare with the foods they are intended to replace.
Why Informed Consent Matters
Whether consumers support or oppose synthetic biology-derived foods, meaningful informed consent depends on transparency.
Parents cannot make informed decisions if they do not understand what ingredients are in a product, how those ingredients were produced or how they compare to conventional foods.
Many Canadians are familiar with genetically modified crops, but far fewer understand precision fermentation, recombinant proteins or synthetic biology.
As more novel food technologies enter the marketplace, consumers deserve clear information about what they are buying and feeding their families.
The issue is not simply whether a product has received regulatory approval. It is whether Canadians are being given sufficient information to make choices consistent with their values, preferences and health concerns.
What About Children’s Health?
Children are among the biggest consumers of many products that could contain precision-fermented ingredients, including granola bars, protein beverages, snack foods and breakfast products. Yet many parents may have little awareness that synthetic biology-derived ingredients are being incorporated into products marketed as healthy, convenient or high in protein.
At the same time, relatively little is known about the long-term effects of regularly consuming foods produced through synthetic biology, particularly in children. The recent study’s identification of dozens of uncharacterized fungal metabolites and hundreds of fungal proteins is likely to raise additional questions for parents seeking reassurance about the safety and nutritional quality of these products.
When it comes to children’s health, many families believe transparency should come first. Parents should not have to conduct extensive research to understand what may be present in the foods they purchase. Meaningful informed consent begins with clear information, allowing families to make decisions that align with their own values and health priorities.
Part of a Larger Trend
Synthetic milk proteins are only one example of a rapidly expanding synthetic biology industry. Around the world, companies are developing a growing range of laboratory-produced foods, including precision-fermented dairy ingredients, genetically engineered animals and cultivated—or “lab-grown”—meat products.
Supporters argue that these technologies will transform food production, while critics say they raise important questions about safety, transparency, labeling and consumer choice. As these products move from research facilities into the food supply, Canadians may increasingly find themselves navigating a marketplace shaped by technologies that few fully understand.
For many families, the central issue is simple: the right to know what is in their food, how it was made and whether they wish to consume it.
The following video from ETC Group provides a brief overview of synthetic biology:
What Can Parents Do?
Parents concerned about synthetic biology-derived foods can start by educating themselves about emerging food technologies and paying closer attention to ingredient labels on processed foods.
Contact your Member of Parliament, Health Canada and the Health Minister to express concern and support for greater transparency and mandatory labeling of foods containing genetically engineered ingredients and those produced through synthetic biology and precision fermentation.
Consumers cannot make informed choices if they do not know what is in their food or how it was produced.
Sources:
Health Canada. “Novel Food Information: β-Lactoglobulin protein from yeast strain Komagataella phaffii yRMK-66.”
PRNewswire “Remilk Makes History as First Animal-Free Milk Protein Greenlit for Use in Canada” (Feb. 5, 2024)
Farmers Forum. “Lab-grown milk coming to Canada.”
Nature Scientific Reports. “Nutritional and molecular comparison of precision-fermented milk and conventional milk.”
David Speicher. “The Synthetic Counterfeit: Unmasking Precision Fermentation.”
ETC Group. “What is SynBio?”
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