This ‘Milk’ Has No Cows Involved at All, and Scientists Say It Could Save Massive Amounts of Land

Dairy alternatives have expanded quickly in the U.S., but the newest products are not oat, almond, or soy drinks. Instead, scientists and food companies are focusing on cow-free milk made with biotechnology, and a 2026 peer-reviewed study says the land savings could be substantial. That matters well beyond specialty grocery shelves because land use has become a central issue in food, climate, and agricultural policy.

A new study put numbers on cow-free milk’s land footprint

The latest benchmark came in a study published February 26, 2026, in Frontiers in Sustainable Food Systems. Researchers found the land footprint of precision-fermentation milk in the UK could be 94% to 96% lower than the footprint of cow’s milk, according to the paper. The authors estimated that replacing 20% of the UK’s cow’s milk with precision-fermentation milk by 2050 could release 851,000 to 866,000 hectares of land.

The same study projected that a 50% replacement could release 2.128 million to 2.165 million hectares, while a full replacement could release 4.257 million to 4.330 million hectares. The researchers wrote that even the lowest replacement scenario would free more than one-third of the land required for the UK Climate Change Committee’s 2050 land-use measures. They also said the findings suggest precision-fermentation dairy could help relieve broader land pressures tied to food production and climate goals.

The paper focused on the UK, not the United States, and it did not conclude that those exact figures would transfer directly to American farming systems. The authors stated that country-by-country assessments would still be needed because dairy land footprints vary by production system. What is confirmed, though, is that scientists now have a recent peer-reviewed estimate suggesting cow-free dairy could sharply reduce land demand where it scales.

The U.S. market already has products, but the national rollout remains limited

In the U.S., the best-known commercial example has been Bored Cow, a beverage launched in May 2022 by Tomorrow Farms in partnership with Perfect Day, according to the companies. Perfect Day says its animal-free whey protein is made by fermentation and is molecularly identical to whey protein from cow’s milk. The company also says the ingredient received a “no objections” letter from the U.S. Food and Drug Administration through the GRAS process.

That means the American market already includes products that use dairy proteins without cows, even if they remain far less common than plant-based milks. The companies have not released a comprehensive state-by-state distribution map in the materials reviewed for this article, so a full list of affected U.S. cities and regions is not publicly confirmed here. What is clear is that these products are positioned differently from almond or oat beverages because they aim to replicate dairy proteins rather than replace them with plant ingredients.

A separate milestone came on February 25, 2025, when Boston-based Brown Foods announced it had showcased what it described as the first lab-made whole cow milk. In that release, the company said its “UnReal Milk” contains essential dairy proteins, fats, and carbohydrates that make up 99% of conventional cow milk, based on its testing and third-party analysis cited in the announcement.

Why companies and researchers are pursuing it

The central reason is resource use. The 2026 Frontiers paper said precision fermentation avoids the need to raise animals and grow feed, which is why its land-sparing potential could be significant. The study also cited an earlier life-cycle assessment of Bored Cow that reported land use of 0.016 square meters per kilogram, versus 0.374 square meters per kilogram for conventional milk, a difference of about 96%.

Companies are making similar sustainability arguments. Brown Foods said in its February 25, 2025 announcement that its lab-made milk is estimated to have an 82% lower carbon footprint, use 90% less water, and require 95% less land than conventional dairy. Those figures come from the company, not an independent regulator, and represent a product still at an early showcase stage rather than a mass-market rollout.

For shoppers, the immediate takeaway is that cow-free dairy is no longer just a research concept. Some U.S. products already use fermentation-derived dairy proteins, while newer efforts are trying to produce full milk without livestock. The broader commercial scale, price, and geographic availability are still developing, but the newest peer-reviewed land-use data gives the category a clearer factual basis as companies continue expanding.