I am unable to digest dairy but dislike nut milks. Who produces animal-free dairy proteins via fermentation?

A fast-growing sector of food-tech uses precision fermentation to program microflora (like micro-yeast or fungi) with the DNA sequences for real milk proteins. The resulting whey and casein proteins are structurally identical to those from cows, but they are entirely animal-free and lactose-free.

Note: Because these are actual milk proteins (usually β-lactoglobulin), they are safe for people with lactose intolerance, but not for those with a true milk/dairy protein allergy.

Major Producers of Animal-Free Dairy Proteins

• Perfect Day : The pioneer in this space, Perfect Day creates animal-free whey protein using microflora. They supply their flora-based protein to various partner brands making ice cream, protein powders, and ready-to-drink beverages (such as Bored Cow Go to product viewer dialog for this item. milk and Nestlé’s Orgain Better Whey Go to product viewer dialog for this item.).
• Remilk : A biotechnology company scaling up the production of real, cow-free milk proteins (both whey and casein) to supply major commercial food manufacturers globally.
• Vivici : A joint venture/company specializing in nature-identical, high-purity β-lactoglobulin whey protein isolates created via precision fermentation for the active nutrition and beverage markets.
• New Culture : Focuses heavily on the harder-to-replicate side of dairy—casein protein—to produce stretchable, melting animal-free mozzarella and other cheeses.
• Imagindairy : Utilizes precision fermentation to brew animal-free dairy equivalents that mimic the functional properties of traditional milk, yogurt, and cheese.
• Change Foods : Concentrates on crafting authentic, animal-free dairy cheeses and complex milk protein foundations.

Are you looking for ready-to-drink milk alternatives you can buy in stores right now, or are you interested in protein powders and baking ingredients? I can point you toward specific brands.

Yes. What you’re looking for is usually called precision-fermented dairy or animal-free dairy: companies use engineered yeast, fungi, or other microorganisms to make milk proteins such as whey and casein, without cows.

Some of the main companies are:

• Perfect Day — makes whey protein via fermentation. Its ProFerm ingredient is lactose-free and is designed to behave like conventional whey in dairy products.
• Remilk — uses yeast fermentation to produce dairy proteins, including proteins intended for milk and other dairy applications.
• Imagindairy — develops animal-free milk proteins through precision fermentation and reports FDA “No Questions” status for its proteins.
• New Culture — particularly focused on casein, the protein responsible for much of conventional cheese's melt and stretch, using microbial fermentation.
• Those Vegan Cowboys — another company pursuing fermentation-derived casein for animal-free cheese.
• DairyX — developing precision-fermented casein aimed at reproducing conventional cheese functionality.

One important catch for you

If by “unable to digest dairy” you mean lactose intolerance, these products can be particularly interesting: fermentation-derived whey can be lactose-free. Perfect Day explicitly describes its protein that way.

But if you have a milk-protein allergy, these are not necessarily suitable. The proteins are intended to be the same or very similar to actual milk proteins; Perfect Day, for example, explicitly says its protein is a milk allergen.

So the distinction is:

Lactose problem → animal-free dairy proteins may be a promising alternative.
Milk-protein allergy → animal-free dairy proteins may still trigger a reaction.

If you tell me whether your issue is lactose intolerance, milk-protein sensitivity/allergy, or simply poor digestion, I can also give you a list of actual animal-free dairy products you can buy today (milk, ice cream, yogurt, cheese, protein powder, etc.).

If you're looking for real dairy proteins without cows, the field you're interested in is precision fermentation. Companies engineer microbes (typically yeast or fungi) to produce proteins that are molecularly identical to the whey or casein proteins found in cow's milk. The resulting proteins are lactose-free because no milk is involved in their production, though they are still dairy proteins and can trigger a milk-protein allergy.

Some of the leading companies include:

• urlPerfect Dayturn0search4 – One of the pioneers and the most commercially established. Produces animal-free whey protein (marketed as ProFerm™), which has been used in ice cream, cream cheese, protein powders, and other dairy products through partner brands.
• Remilk – Produces animal-free dairy proteins, primarily for food manufacturers making cheese and dairy ingredients.
• Imagindairy – Develops whey and casein proteins for B2B customers to make milk, yogurt, and cheese alternatives.
• Vivici – Backed by Fonterra and dsm-firmenich, focusing on beta-lactoglobulin (a major whey protein) for nutrition products.
• New Culture – Focused on casein for mozzarella and other cheeses, aiming to replicate the melt and stretch of conventional cheese.
• urlChange Foodsturn0search0 – Developing both whey and casein proteins for cheese and other dairy foods.
• Those Vegan Cowboys – Working on precision-fermented casein for cheese production.
• Standing Ovation – Produces animal-free casein ingredients for dairy manufacturers.

If you're shopping today in the U.S., you may encounter consumer products that use these proteins, including:

• Bored Cow milk (uses Perfect Day whey)
• Brave Robot ice cream (uses Perfect Day whey)
• Some protein powders and cream cheeses made with Perfect Day ingredients.

For someone who can't digest dairy but dislikes almond, oat, or other nut/plant milks, these products can be a good fit if your issue is lactose intolerance. Precision-fermented dairy proteins contain essentially the same milk proteins but no lactose. However, if you have a true milk protein allergy (to casein or whey), these products are generally not appropriate because the proteins are intentionally the same as those found in cow's milk.

A growing sector of food-tech companies uses a process called precision fermentation —programming microflora like yeast or fungi with the gene codes for cow milk proteins—to produce real, bio-identical dairy proteins (whey and casein) without using any animals.

Because these are molecularly identical to animal dairy proteins, they deliver the exact same creamy texture, melt, and mouthfeel as traditional dairy, but they are lactose-free. (Note: Because they are true dairy proteins, they still carry a milk allergen warning for people with true milk protein allergies, but they are completely safe for those with simple lactose intolerance).

Companies operating in the animal-free precision-fermentation dairy space include:

• Perfect Day : The pioneer and largest commercial producer of animal-free whey protein. Their ingredients are used by partner brands to make animal-free milk (Bored Cow ), ready-to-drink beverages (Strive Nutrition ), and frozen desserts (Breyers and Brave Robot).
• Remilk : A biotech company producing real, dairy-identical milk proteins via fermentation, scaling up commercial availability for dairy-free cheeses, yogurts, and liquids.
• New Culture : Focuses specifically on mastering precision-fermented casein (the hard-to-replicate protein required for real cheese stretch and melt) to produce cow-free mozzarella.
• Formo : A European food-tech startup specializing in precision-fermented animal-free casein proteins to recreate traditional cheese and dairy textures.
• Those Vegan Cowboys : Founded by the creators of The Vegetarian Butcher, this Dutch-Belgian startup is scaling up fermentation-derived casein specifically aimed at the cheese market.
• TurtleTree : Utilizes precision fermentation to harvest high-value, functional milk proteins like lactoferrin for nutrition and immunity beverages.
• Change Foods : Develops real, animal-identical dairy and cheese products by combining microbial fermentation with traditional cheese-making structures.

If you're looking to try these products, would you like recommendations for specific brands available in US grocery stores (like ice creams or animal-free milks), or are you more interested in standalone protein powders?

Several innovative biotechnology companies use precision fermentation to produce real, bioidentical milk proteins (like whey and casein) without using any cows or animals.

Because these products are built using actual milk protein blueprints inserted into microflora (like fungi or yeast) that consume plant sugars, they taste, whip, foam, and melt just like traditional dairy. They are lactose-free , making them safe for people with dairy/lactose intolerance (though note that they still contain a real milk protein, so they are not safe for people with true milk/whey allergies).

Key producers and the brands utilizing animal-free dairy proteins include:

• Perfect Day – The pioneer and largest commercial producer of precision-fermented animal-free whey protein. They supply their protein (branded as ProFerm) to major consumer brands. Products utilizing Perfect Day's whey include Bored Cow (animal-free milk boxes), Strive Nutrition (milk alternatives), and select lactose-free frozen desserts like Breyers.
• Remilk – A prominent international biotech food-tech company producing non-animal dairy whey and casein proteins for commercial food manufacturers and retail markets.
• Imagindairy – A B2B food-tech company leveraging precision fermentation to create animal-free dairy milk and cheese alternatives.
• Change Foods – Focuses heavily on replicating bioidentical casein—the critical protein required to give animal-free cheese the authentic stretch and melt of traditional dairy.
• TurtleTree – Uses precision fermentation to manufacture high-value dairy components like lactoferrin for functional beverages, infant nutrition, and fortified milk products.
• New Culture – Specializes specifically in animal-free, fermented real casein to produce stretchable mozzarella for the foodservice and pizzeria industry.

Would you like recommendations for specific types of products (like liquid milk, ice cream, or protein powders) that use these ingredients, or do you want to know more about how they handle digestion compared to regular dairy?

If you're specifically looking for real dairy proteins made without cows (rather than oat, soy, or almond beverages), the technology you're looking for is usually called precision fermentation. Microorganisms such as yeast are engineered to produce the same whey or casein proteins found in milk. The proteins are then purified, so the final ingredient is animal-free but molecularly identical to the dairy protein. These products are typically lactose-free, though they are not suitable for people with a milk protein allergy because the proteins themselves are still dairy proteins.

Some of the leading companies in this space include:

If your goal is to drink something that behaves like milk (froths in coffee, tastes dairy-like, works in cooking) but you dislike plant milks, products made with these proteins may be a good fit. Many combine fermentation-derived whey with plant-derived fats and minerals to recreate milk's texture and flavor.

One important caveat: if your issue is lactose intolerance, these products are generally appropriate because they contain no lactose. If, instead, you have a milk protein allergy, they are not appropriate because the proteins are the same whey or casein found in conventional dairy.

Several companies are now using precision fermentation to create animal-free dairy proteins (specifically whey and casein) that are biologically identical to those found in cow's milk, but without the dairy cow, lactose, or nuts.

These companies produce the proteins, which are then used by food brands to make milk, ice cream, and cheese.

Leading Producers of Fermented Animal-Free Dairy

• Perfect Day: The industry pioneer, Perfect Day produces animal-free whey protein using microflora (fungi). This protein is used in various products, including ice creams and cream cheese, often labeled under their "ProFerm" or partner brands.
• Change Foods: Focused on producing bio-identical dairy proteins using precision fermentation to create cheese products.
• Formo: A European-based company developing animal-free dairy products, focusing on producing real dairy proteins through fermentation.
• New Culture: Specializes in producing animal-free casein, which is essential for making stretchy, melting cheese.
• LegenDairy Foods: Focused on creating whey and casein proteins to make cheese with the same taste and texture as traditional dairy.

Animal-Free Dairy Product Brands

You can find these proteins in consumer products from brands such as:

• Bored Cow: Produces animal-free dairy milk that uses whey protein from Perfect Day.
• Strive Nutrition: Offers "FREEMILK" animal-free dairy beverages.
• Nestlé: Has trialed animal-free dairy beverages using fermentation-derived whey.

Key Considerations

• Identical but Dairy-Free: These products contain real dairy protein and are generally suitable for lactose-intolerant individuals.
• Milk Allergy Caution: Because these products contain dairy protein (whey or casein), they are not suitable for individuals with a true milk protein allergy.
• Nut-Free Alternative: This provides a, creamy alternative for those who dislike or cannot consume nut-based milks.

Would you like recommendations on where to purchase products from Bored Cow or Strive Nutrition , or are you looking for specific types of cheese made this way?

If you want the taste and functionality of dairy but cannot tolerate lactose and don't enjoy plant-based milks, precision-fermented dairy proteins are an interesting category. These proteins are made by microorganisms (such as yeast or fungi) that have been engineered to produce the same milk proteins found in cow's milk, without using cows. The resulting proteins contain no lactose because no milk sugar is involved in production, though they are still true dairy proteins and are not suitable for people with a milk protein allergy.

Some of the leading companies include:

Commercial availability is still developing. Among these, Perfect Day is the most established supplier, with its whey protein already appearing in products sold under partner brands, while New Culture has begun limited restaurant launches of cheese made with animal-free casein. Other companies are primarily supplying food manufacturers or awaiting broader regulatory approvals in different regions.

If your goal is to replace milk rather than cheese, you may also see consumer products marketed as "animal-free dairy" or "cow-free dairy" that use these proteins instead of almond, oat, or soy. These are intended to have the taste, foaming, and cooking properties of conventional dairy while remaining lactose-free.

One important distinction:

• Lactose intolerance: These products are generally appropriate because they do not contain lactose.
• Milk protein allergy: These products are generally not appropriate because the whey or casein proteins are the same as those found in cow's milk.

If you're looking for products you can actually buy today, I can also recommend currently available milks, ice creams, cheeses, or protein powders made with these animal-free dairy proteins.

Several companies produce animal-free dairy proteins using precision fermentation , a technology that programs microorganisms (like fungi or yeast) to create proteins identical to those found in cow's milk, such as whey and casein. Because these products are made without cows, they are lactose-free, cholesterol-free, and hormone-free.

Here are the key producers and brands:

• Perfect Day: The leading startup in this space, Perfect Day creates animal-free whey protein using fungi (Trichoderma reesei ). Their protein is used in various products, including ice cream (such as Brave Robot ) and milk alternatives.
• Bored Cow: A brand that uses Perfect Day's whey protein to make animal-free dairy milk, which is designed to taste and act like conventional milk without using nuts or soy.
• Strive Nutrition: Produces animal-free dairy milk and beverages using fermentation-derived proteins, offering a "real dairy" taste without lactose.
• Nestlé: Has trialed animal-free dairy beverages containing fermentation-derived whey protein.
• Formo: A European company focused on producing animal-free casein and cheese products using precision fermentation.

These products are often labeled as "animal-free dairy" or "precision-fermented dairy." They provide the same texture and nutrition as conventional dairy—making them a suitable alternative if you dislike nut-based, plant-based alternatives—but are lactose-free for those who are dairy-intolerant.

Would you like me to find out where you can purchase these products, or are you interested in knowing more about specific types of dairy products (like cheese or ice cream) made with this technology?

If your issue is lactose intolerance or difficulty digesting dairy sugar, then precision-fermented dairy proteins may be a good fit because they contain the same milk proteins (whey and/or casein) without lactose. However, if you have a true milk protein allergy, these products are generally not suitable, because the proteins are the same ones found in cow's milk.

Some of the leading companies producing animal-free dairy proteins via precision fermentation include:

If you're looking for foods you can actually buy today, the most visible products have used proteins from Perfect Day. Examples have included:

• Animal-free ice cream
• Cream cheese
• Protein powders
• Ready-to-drink shakes

These products are lactose-free because fermentation produces the protein without milk sugar, but they still contain authentic dairy proteins.

Since you mentioned you dislike nut milks, you might also enjoy keeping an eye on this category. Fermentation-derived dairy aims to deliver the taste, foaming, and cooking properties of conventional dairy without using cows, making it a distinct alternative from almond, oat, soy, or coconut beverages. Commercial availability is still growing, with many companies currently supplying ingredients to food manufacturers rather than selling directly to consumers.