Lab-Grown Chicken Gets FDA Approval: The Science of Cultivated Animal Cells

The era of slaughter-free meat has officially arrived in the United States. In a historic move, federal regulators granted full approval for cultivated chicken to be sold to consumers, marking a massive shift in food science. But how exactly do you grow a chicken breast without a living bird? The answer involves advanced cellular biology and massive steel bioreactors.

The Historic Regulatory Approvals

Bringing cultivated meat to the public required clearing strict regulatory hurdles. In the United States, this process is jointly overseen by the Food and Drug Administration (FDA) and the Department of Agriculture (USDA).

The major breakthrough happened when two California-based companies, UPSIDE Foods and GOOD Meat, received a “No Questions” letter from the FDA. UPSIDE Foods secured this letter in November 2022, and GOOD Meat followed in March 2023. This letter simply means the FDA evaluated the companies’ production processes and agreed that the lab-grown chicken is entirely safe for human consumption.

In June 2023, both companies received their final USDA grants of inspection. This allowed them to legally produce and sell their cultivated chicken products in the United States.

The Biological Starting Point: Cell Extraction

The journey of a cultivated chicken breast starts with a tiny cluster of cells. Scientists do not need to raise an entire animal to produce meat. Instead, they extract a small sample of cells from a living chicken, a fertilized egg, or an established cell bank.

Biologists look for specific types of cells to create meat:

• Stem cells: These can transform into various tissue types.
• Myoblasts: These are the precursor cells that eventually form muscle tissue.
• Fibroblasts: These cells help create connective tissue.

Once the optimal cells are selected, scientists screen them for health and vigor. They often create an “immortalized cell line.” This means the cells are naturally adapted to continue dividing indefinitely, allowing a single small sample to potentially produce thousands of pounds of meat over time.

Feeding the Cells: The Culture Medium

Cells cannot grow on their own. They require a steady diet of nutrients. In traditional farming, a chicken gets its nutrients from eating grain and bugs. In a laboratory or production facility, scientists feed the cells a specialized liquid called a culture medium.

This nutrient-rich broth contains everything the cells need to multiply:

• Amino acids for building proteins
• Glucose for energy
• Essential vitamins and minerals
• Inorganic salts

Historically, researchers relied on Fetal Bovine Serum (FBS) to help cells grow in a lab setting. However, FBS is expensive and derived from animals. To make cultivated meat truly slaughter-free and commercially viable, companies like UPSIDE Foods and GOOD Meat have developed proprietary, animal-free growth factors. These plant-based and synthetic alternatives provide the chemical signals the cells need to multiply.

Inside the Bioreactor Technology

The snippet of this article mentions bioreactor technology, and this is truly the heart of the cultivated meat process. You can think of a bioreactor as an artificial body. It provides the exact environment the cells need to thrive.

When you visit a cultivated meat facility, it looks much more like a beer brewery than a farm. The rooms are filled with towering stainless steel tanks. Inside these bioreactors, the magic of cellular agriculture takes place.

A bioreactor manages several critical functions:

• Temperature Control: The tank keeps the liquid exactly at the internal body temperature of a chicken (around 105 to 107 degrees Fahrenheit).
• Oxygenation: Cells need to breathe. Sensors monitor dissolved oxygen levels and pump in sterile air as needed.
• Agitation: An internal stirring mechanism, often called an impeller, gently swirls the nutrient broth. This ensures that every single cell has access to food and oxygen while preventing them from settling at the bottom of the tank.
• Waste Removal: As cells consume nutrients, they produce byproducts like lactic acid. Advanced bioreactors continuously filter out these waste products so the environment remains healthy.

Inside this highly controlled environment, the cells multiply exponentially. Within a matter of weeks, a small vial of cells can grow into hundreds of pounds of raw cellular material.

From Cells to Cutlets: Scaffolding and Harvesting

When the cells are finished multiplying in the bioreactor, they do not automatically look like a chicken breast. At this stage, the harvested material is essentially a slurry of pure muscle and fat cells.

To give the meat the familiar texture of a chicken cutlet or nugget, food scientists use a process called scaffolding. Scaffolds are edible, three-dimensional structures that guide the cells on how to grow together. These structures are usually made from plant proteins like soy, pea, or gelatin.

The cells attach to the scaffold and begin to differentiate. They fuse together to form long muscle fibers. By applying mechanical tension (stretching the fibers) and adjusting the nutrient mix, scientists can mimic the exact texture, bite, and mouthfeel of traditional poultry. Once structured and formed, the meat is cooked, seasoned, and packaged.

Environmental and Safety Benefits

The push for cultivated meat is driven by more than just animal welfare. The traditional poultry industry requires massive amounts of land and water to grow feed for billions of birds. Cultivated meat bypasses this entirely, requiring significantly less land and reducing greenhouse gas emissions.

Furthermore, cultivated chicken is grown in a strictly monitored, sterile environment. This process eliminates the need for the antibiotics that are heavily used in factory farming. It also completely removes the risk of foodborne illnesses like Salmonella or E. coli, which typically originate from the digestive tracts of slaughtered animals.

Frequently Asked Questions

Is lab-grown chicken considered vegan?

No. Cultivated chicken is completely real animal meat. It is grown from actual chicken cells, meaning it contains the same animal proteins and fats as traditional chicken. Because it is biologically an animal product, it is not suitable for a strict vegan diet. However, many vegetarians and vegans support the technology because it does not involve animal slaughter.

Is cultivated meat safe to eat?

Yes. The FDA and the USDA have both rigorously evaluated the production methods of approved companies like UPSIDE Foods and GOOD Meat. They concluded that cultivated chicken is as safe to eat as traditionally raised chicken.

Does lab-grown meat taste like real chicken?

Because it is made of the exact same muscle and fat cells as a living bird, cultivated chicken tastes identical to conventional chicken. It offers the same nutritional profile, including the same amount of protein and amino acids.

Where can I buy cultivated chicken?

Currently, cultivated chicken is not widely available in everyday grocery stores. Following the 2023 approvals, it debuted in a select few high-end restaurants, such as Bar Crenn in San Francisco. As companies build larger bioreactor facilities and scale up their production, the cost will come down, and you can expect to see these products in local supermarkets in the coming years.