Lab-grown meat is real animal meat made from cells grown in a controlled facility instead of from a raised and slaughtered animal. The industry prefers the terms cultivated meat or cell-cultured meat. In the US, a handful of products have cleared federal review, a growing list of states have banned sales, and nothing is yet sold at true supermarket scale. Below: how it’s made, who regulates it, why costs are the central problem, and how to read the headlines.
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TL;DR
- Lab-grown meat is made by taking a small sample of animal cells and feeding them in a bioreactor until they multiply into edible tissue. It is animal meat at the cellular level, not a plant-based substitute.
- In the US, the FDA and USDA share oversight under a formal agreement: the FDA covers cell collection, banks and growth, and USDA-FSIS takes over at harvest.
- Several states have passed bans on selling it, and some of those are being fought in court.
- Cost and scale are the biggest obstacles. Cells double roughly once a day, contamination can ruin a batch, and price parity depends on huge bioreactors that mostly don’t exist yet.
- The environmental case is still unsettled. It depends heavily on the energy source and the growth medium.
Table of Contents
What lab-grown meat actually is
Cultivated meat is a form of cellular agriculture. Producers isolate cells from an animal, such as muscle or fat cells, and grow them in vitro in a nutrient-rich liquid called growth medium. A Nature Food review of production economics frames the goal plainly: finding a way for industrial-scale production to reach price parity with conventional meat.
That makes it different from three things people often mix it up with:
- Plant-based meat. Made from soy, pea or other plant proteins. No animal cells involved.
- Fermentation-derived protein. Uses microbes such as fungi to make protein or ingredients.
- Hybrid products. Some cultivated products blend a small share of animal cells with plant proteins, oils and starches. That is how several of the first products reaching the market are built.
The UK’s Food Standards Agency describes cell-cultivated products as foods made without slaughter or traditional farming, using cells isolated from animals or plants. In the UK, that also means they do not meet the legal definition of “meat”, a quirk of how hygiene law is written, which shows how new the category is for lawmakers.
How cultivated meat is made
The process looks less like a farm and more like a brewery or a pharmaceutical plant.
- Cell sourcing. A small biopsy, or a cell line already established, provides starting cells. Producers can bank these cells and reuse them, which is why regulators pay attention to the cell line itself.
- Growth in a bioreactor. The cells sit in a tank with growth medium: amino acids, sugars, salts, vitamins and growth factors. They multiply.
- Structure and differentiation. Cells are coaxed into muscle, fat or connective tissue. Some products use an edible scaffold to give texture. Ground-style products are far easier than a whole steak.
- Harvest and finishing. The cell mass is collected, then shaped, blended with other ingredients, cooked and packaged.
Why speed is limited
Popular coverage often implies a burger in days. Biology says otherwise. According to a 2025 critical review in Critical Reviews in Food Science and Nutrition, mammalian and avian cells have a natural doubling time of around 24 hours. You can’t push that much faster, so the way to increase output is bigger tanks and longer, cleaner runs.
Why sterility is a big deal
The same review points out a common misconception: that this food would be made in looser conditions than medicines. In biotech, antibiotics are routinely used to hold bacteria back, but they can’t be used in human food production. So producers need cleanroom standards and environmental controls similar to, or tighter than, those used in pharmaceutical manufacturing, because any microbial contamination can quickly ruin an entire batch.
Who regulates it in the US
The US approach is a two-agency handoff. Under a formal agreement established in March 2019, the FDA oversees cell collection, cell banks and cell growth and differentiation. The USDA’s Food Safety and Inspection Service takes over at harvest for livestock and poultry products, covering safety and labeling.
Before a product can reach shoppers, the company goes through an FDA pre-market consultation. The FDA’s page on human food made with cultured animal cells explains the pathway, and an inventory of completed consultations lists each food that has finished it. One recent example: in March 2025 the agency completed a consultation on food made with cultured pork fat cells from Mission Barns, stating it had no questions at that time about the company’s safety conclusion.
A “no questions” letter is not a blanket endorsement. It means the agency reviewed the company’s data and did not object. The FDA’s role in food safety is broad, reaching well beyond novel foods; even FDA warnings about dog food show how the agency’s reach extends across what animals and people eat.
What regulators expect from producers
The UK’s FSA offers a useful look at how a regulator thinks about this. Under its classification and HACCP guidance, producers should build Hazard Analysis and Critical Control Point principles into the design from the beginning. Because the products are novel, the burden sits with the producer to show that its specific process, including cell line, medium and harvest method, is as safe as conventional food. The UK is also running a sandbox programme from February 2025 to February 2027 to develop specific safety and labeling guidance. That is a UK scheme, not a US rule, but US producers face the same logic.
Where you can legally buy it in the US
Federal clearance and local legality are two different things. According to an industry roundup, five products have cleared the joint FDA and USDA process: chicken from Upside Foods and Good Meat, Wildtype salmon, Mission Barns pork fat, and Believer Meats poultry, though Believer Meats closed not long after clearance. The same piece concludes that nothing is yet selling at commercial scale anywhere.
On top of that sits a patchwork of state laws. One recent summary reports that Alabama, Florida, Indiana, Mississippi, Montana, Nebraska and Texas have passed laws banning the sale, manufacture or distribution of cultivated meat. Florida was first in 2024. The Indiana and Texas bans are temporary and set to expire in 2027 unless renewed. The same report says a federal appeals court upheld Florida’s ban in March 2026 after a company argued it conflicts with federal food law.
If you want to know whether you can eat it where you live, check your state’s current law and the restaurant’s own announcements. Bans and court rulings are moving targets, and this is a general overview rather than legal advice for a business that wants to sell the product.
Why it’s still expensive
Cost is the hard part, and the numbers explain why.
A techno-economic model of cultivated beef, published through the NSF Public Access Repository, estimated a cost of goods sold of $35 per kg in a 42,000 L stirred tank reactor. At 211,000 L it fell to $25 per kg, and in a 262,000 L airlift reactor to $17 per kg. The models assume annual production of 100,000,000 kg, about 0.14% of global beef output.
| Bioreactor (modeled) |
Modeled cost of goods sold |
| 42,000 L stirred tank |
$35/kg |
| 211,000 L |
$25/kg |
| 262,000 L airlift |
$17/kg |
Two cautions apply. These are models, not prices on a shelf, and cost of goods is not retail price. And the same paper reminds us of the “scaling gap”: most academic work uses small-scale tissue engineering methods, whereas commercial competitiveness needs bioreactors from 20,000 L to more than 200,000 L. Getting there requires breakthroughs in reactor design, cell lines that tolerate suspension, and animal-free growth media, not just bigger versions of lab methods.
The pharma lesson
Researchers writing in Nature Food argue that many companies are trying to scale lab-bench techniques never designed for continuous, high-volume food manufacturing, and that success may depend on methods borrowed from mature pharmaceutical bioprocessing. Some work is already pointing that way. A study with supplementary data on continuous manufacturing of cultivated chicken with an animal-free medium examines the economics of that approach in detail.
Is it better for the environment?
The pitch has long been lower land use, water use and emissions than livestock farming. The evidence is less tidy. A 2025 critical review by Tavan and colleagues calls for more robust, standardized life cycle assessments. Early projections were optimistic, but the real footprint depends heavily on the energy source for big bioreactors and on what’s in the growth medium, factors that simplified popular reporting often skips.
The same review notes that more than 170 companies work in cultured meat and have attracted over US$3 billion in investment since 2019. That money was raised partly on environmental claims, which is why the claims deserve scrutiny.
In plain terms: running a cultivation plant on clean power could look quite different from running it on a fossil-heavy grid. Anyone giving you a single percentage for “how much greener” is simplifying.
Is it safe to eat?
For the products that have cleared review, US regulators have looked at the cell line, the production process and the harvested product. The FDA’s consultation process is built around exactly those questions. The unknowns are less about a single bite and more about long-term, large-scale production and about allergen and nutrition questions that regulators are still writing guidance on. The UK FSA, for example, has published supplementary guidance on allergenicity and nutrition for cell-cultivated products regulated as novel foods in Great Britain.
If you have a food allergy, a medical diet or are pregnant, ask your doctor or a registered dietitian how a new product fits your situation, and read the label for the ingredient list, which will show any plant proteins or other additions.
Our take: separate the demo from the supply chain
We cover a lot of technology stories at Have You Heard?, and lab-grown meat is a textbook case of a story where the demo outruns the supply chain. A tasting event, an approval letter and a funding round are all real news. None of them tells you whether a product will be on your plate at a price you’d pay.
When a new headline lands, we’d suggest three questions. First, what exactly was approved: a hybrid product, a single ingredient like cultured fat, or a pure cell-based cut? Second, at what scale is it actually being made, in liters, not in press-release adjectives? Third, who checked the environmental claim, and which energy source were they assuming?
We also think the ban-versus-hype framing misses the middle. The documents show a field that is technically real, regulated at the federal level, politically contested at the state level, and economically unproven. All of those can be true at once. Our job is to give you the context so you can hold that complexity without sifting through noise.
Keep following the story
This topic changes by the month: new approvals, new state laws, new funding, and the occasional shutdown. If you want clear explanations of fast-moving stories in tech, science, food and current events, with sources you can follow up on, browse Have You Heard? or read more about how we pick our stories.
FAQ
Is lab-grown meat real meat?
Yes, in the sense that it is made of real animal cells, such as muscle or fat. It is grown in a bioreactor instead of inside an animal. It is not a plant-based substitute, though some products blend cultivated cells with plant ingredients. Legal definitions vary by country; the UK, for example, does not treat these products as “meat” for hygiene law purposes.
Is lab-grown meat approved in the US?
Some products are. They go through an FDA pre-market consultation and then USDA-FSIS oversight for livestock and poultry products. The FDA keeps a public inventory of completed consultations. Federal clearance does not override state bans, so availability depends on where you live.
Why is lab-grown meat so expensive?
Cells double only about once every 24 hours, sterile conditions must be held for long stretches, and the growth medium is costly. Models suggest that very large bioreactors are needed to approach competitive costs, as the NSF-hosted techno-economic study shows, and such plants are still rare.
Is lab-grown meat better for the planet?
Not automatically. Researchers say the answer depends on the energy used to run bioreactors and the makeup of the growth medium, and they call for standardized life cycle assessments before anyone leans on the sustainability claim.
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