Cultivated meat is real meat grown from animal cells in a laboratory or factory, not taken from a slaughtered animal. The process starts with a small sample of cells, which are placed in a nutrient-rich liquid and kept in controlled conditions so they multiply and form muscle tissue. In the United States, cultivated meat is regulated as a food, with the Food and Drug Administration overseeing cell collection and production and the US Department of Agriculture overseeing processing and labeling of the finished product.
How Are Cultivated Meats Made?
The basic idea is closer to brewing than to farming. Cells are grown in a warm, nutrient-rich environment, much like yeast cells are grown to make beer. The difference is that the cells come from an animal.
Production generally follows a few steps.
- Cell collection. A small sample of tissue is taken from a living animal. This can be done with a biopsy under local anesthesia, and the animal keeps living afterward. Cells may also come from a fertilized egg or from a stored cell bank.
- Cell selection. Scientists pick cells that multiply well and can become muscle or fat. Stem cells are useful because they can divide many times and turn into different tissue types.
- Growth in a bioreactor. The cells go into a tank called a bioreactor, filled with a liquid growth medium. This medium supplies sugars, amino acids, vitamins, salts, and growth factors. Temperature and oxygen are tightly controlled.
- Forming tissue. Cells multiply and then are guided to organize into muscle fibers and fat. Some products are grown as thin sheets. Others are combined with plant-based ingredients to give structure and texture.
- Harvest and processing. The tissue is collected and formed into a final product, such as a patty, nugget, or fillet.
The growth medium is one of the harder engineering problems. Early lab methods used costly ingredients, including fetal bovine serum, a blood product taken from cow fetuses. That is expensive and raises ethical concerns, so companies have worked to replace it with animal-free alternatives. Whether those alternatives perform well at large scale is still being worked out.
This is different from plant-based meat. Plant-based burgers are made from soy, peas, or other plants. Cultivated meat is animal tissue. It is also different from fermentation-derived proteins, where microbes are engineered to produce specific proteins. Those are three separate product categories, and they are regulated and labeled differently.
How Is Cultivated Meat Regulated in the United States?
The US splits oversight between two agencies. The FDA handles the front end, and the USDA handles the back end.
The FDA oversees cell collection, cell banks, and the production process up to the point of harvest. Companies submit information about their process, and the FDA reviews it for safety. This review is voluntary in a formal sense, but companies have treated it as a necessary step before selling.
Once cells are harvested, the USDA’s Food Safety and Inspection Service takes over. That agency inspects the facility and reviews the product, similar to how it handles conventional meat and poultry. The finished product must carry an inspection mark.
The two agencies signed a formal agreement in 2019 laying out this division of labor. In 2023, the USDA granted the first approvals for companies to sell cultivated chicken in the US. That means the pathway exists and has been used, though the number of approved products remains small.
One point that gets lost in headlines: FDA review of a cultivated meat product is not the same as FDA approval of a drug. The agency reviews the company’s safety data and raises no objections if the evidence supports it. It is a consultation process, not a formal approval stamp.
What Safety Questions Remain About Cultivated Meat?
The core safety concerns are the same ones that apply to any food production system: contamination, allergens, and the safety of everything that goes into the product.
Bioreactors are warm, wet environments, which is also ideal for bacteria and other microbes. Sterile technique and monitoring matter. The FDA review process is designed to examine how a company controls this risk.
Growth media ingredients are another focus. Anything added to the cells becomes part of the production process, and residues need to be understood. Companies are expected to show that these materials are removed or present only at safe levels.
There is also the question of what happens at scale. A process that works cleanly in a small facility may behave differently in a large one. Regulators review the process a company describes, but real-world performance over years of production is something no pre-market review can fully predict. That is true of conventional food production as well.
Long-term human health data on cultivated meat does not exist, because the products are new. The safety case rests on the composition of the product, the safety of the inputs, and the controls on the process. That is the standard framework for new foods, and it is a reasonable one, but it is not the same as decades of population-level data.
How Is Cultivated Meat Labeled?
Labeling rules are still developing. In the US, the USDA sets labeling requirements for the finished product, and the agency has required that cultivated products be clearly identified as such.
Terms like “cell-cultivated” and “cultivated” have been used in approved labels. The goal is to avoid confusion with conventional meat. Regulators have been clear that a product grown from animal cells should not be presented in a way that misleads shoppers about what it is.
Labeling debates are not settled everywhere. Different countries have taken different approaches, and some have restricted the use of the word “meat” for these products. If you are shopping in a specific market, the rules there are what apply.
Is Cultivated Meat Available to Buy?
Availability is very limited. In the US, a small number of cultivated chicken products have been approved, and they have appeared in a handful of restaurants. They are not widely stocked in grocery stores.
Cost is the main barrier. Producing meat cell by cell is currently far more expensive than raising animals, and bringing the price down requires larger facilities and cheaper growth media. Companies are working on both, but the timeline is uncertain.
Scale is the other barrier. The bioreactors needed for commercial volumes are large, and the engineering to run them reliably is still being developed. Some projections for widespread availability have been optimistic. The honest position is that no one knows exactly when, or whether, cultivated meat will reach everyday grocery shelves at a competitive price.
How Does Cultivated Meat Compare With Conventional and Plant-Based Meat?
The three categories differ in what they are and how they are made.
| Category | What it is | Main inputs |
|---|---|---|
| Conventional meat | Tissue from a raised and slaughtered animal | Feed, water, land, animals |
| Plant-based meat | Food made from plant proteins and other ingredients | Plants such as soy, peas, wheat |
| Cultivated meat | Animal cells grown in a bioreactor | Cells, growth medium, energy |
Environmental claims deserve care. Cultivated meat is often described as using less land and water than conventional meat. Some analyses support that direction, but the energy demands of running bioreactors matter, and the overall footprint depends heavily on how the electricity is generated. The evidence is still developing, and claims of a large environmental advantage are not firmly established across all production methods.
Nutrition also varies by product. Cultivated meat is animal tissue, so it can contain protein and fats similar to conventional meat, but the exact profile depends on how it is grown and formulated. It is not automatically healthier or less healthy. That depends on the specific product.
What Should Consumers Keep in Mind?
Treat bold claims from any direction with some caution. Companies selling cultivated meat have an interest in emphasizing its benefits. Critics have an interest in emphasizing risks. The regulatory record is the most reliable place to look for what has actually been reviewed and approved.
If a product reaches your market, the label should tell you what it is. Read it the way you would read any food label. The fact that something is grown in a lab does not make it safer or riskier by itself. What matters is the specific process, the specific inputs, and the specific oversight.
Frequently Asked Questions
Is cultivated meat the same as plant-based meat?
No. Cultivated meat is grown from animal cells, while plant-based meat is made from plant proteins. They are different products with different ingredients and different regulatory pathways.
Is cultivated meat safe to eat?
Products approved so far have gone through FDA review of the production process and USDA inspection of the finished product. Long-term population data does not exist because the products are new, so the safety case rests on process controls and product composition.
Can you buy cultivated meat in US grocery stores?
Not widely. A small number of cultivated chicken products have been approved and served in limited restaurants, but they are not generally available in grocery stores.
Who regulates cultivated meat in the United States?
The FDA oversees cell collection and production, and the USDA oversees processing, inspection, and labeling of the finished product. The two agencies formalized this split in a 2019 agreement.
