Lab-Grown Meat in Pet Food: The Future of Sustainable Pet Nutrition

By Sarah Bennett, Certified Animal Nutritionist

Few developments in food science have generated as much excitement — and as much scepticism — as cultivated meat. Also called cell-cultured meat, lab-grown meat, or cultured protein, the technology involves taking a small biopsy of cells from a live animal, placing them in a nutrient-rich growth medium inside a bioreactor, and allowing them to multiply into genuine animal muscle tissue. The result is real meat — biologically identical to conventionally produced meat — without any need to raise and slaughter animals at scale.

For the human food market, cultivated meat has been moving through regulatory approval processes in Singapore and the United States, with the FDA completing its first pre-market consultation for human food produced from cultured animal cells in 2023. The pet food sector, however, is quietly tracking an even more promising trajectory. Given that companion animals consume an estimated 20–30% of all meat produced in developed countries, cultivated meat pet food may represent one of the highest-impact applications of this technology — and several dedicated startups are racing to bring it to market.

How Cultivated Meat Is Made

The production process for cultivated meat begins with a small tissue sample — a muscle biopsy — taken from a donor animal. This is a minor, minimally invasive procedure that causes the animal no lasting harm. From this sample, scientists isolate muscle stem cells (satellite cells), which have a natural capacity to proliferate and differentiate into muscle fibres. These cells are placed in a bioreactor containing a growth medium — a carefully formulated liquid rich in amino acids, sugars, salts, and growth factors — and allowed to multiply.

Once sufficient cell mass has been produced, the cells are encouraged to differentiate: to stop dividing and instead mature into the elongated muscle fibres that give meat its characteristic texture. The result is genuine skeletal muscle tissue. The fat content, texture, and even flavour profile can be modulated during this process, offering manufacturers a degree of control over nutritional composition that is simply impossible with conventional slaughterhouse production.

For pet food applications, the process offers additional advantages over human food. Pet food formulations are typically cooked, blended, and processed in ways that reduce the importance of texture — meaning that cultivated meat can be incorporated into wet food pouches, extruded kibble, or raw-style formats without the technological challenges of producing a convincing whole-muscle steak. The barrier to entry for pet food is meaningfully lower than for the human food sector.

The Regulatory Landscape

Regulatory approval for cultivated meat in pet food is the critical bottleneck right now. In the United States, the FDA completed its first pre-market consultation for cultivated meat in human food in 2023 — a significant milestone that established the safety evaluation framework for cell-cultured animal products. For pet food, the FDA's Center for Veterinary Medicine (CVM) would handle approval, and the framework being built for human food is expected to inform this process substantially.

In the guide" title="Pet Insurance in Europe: Country-by-Country Comparison">European Union, Novel Food regulations under Regulation (EU) 2015/2283 govern the approval of cultivated meat, and similar frameworks apply to animal feed and pet food. No cultivated meat pet food has received EU approval as of mid-2024, but applications are expected as the technology matures. The UK's Food Standards Agency is conducting its own safety assessments in parallel.

As The Guardian's coverage of cultivated meat in pet food highlighted, companies including Bond Pet Foods and Because Animals have been developing cultivated protein products specifically for companion animals, with Bond Pet Foods working on cultivated chicken protein for cats and dogs. The race to be first to market in the pet food sector is intensifying.

Nutritional Considerations

A key question from a nutritional standpoint is whether cultivated meat delivers the same nutritional value as conventionally produced meat. The scientific consensus is that the cellular composition of cultivated muscle tissue is essentially identical to conventional meat: the same structural proteins (myosin, actin), the same essential amino acids, the same creatine content. A systematic review published in npj Science of Food (PMID 36567230) examined the nutritional and safety profile of cultivated meat and concluded that it is "nutritionally equivalent to conventional meat" when the growth medium and process are properly controlled.

There are some nuances worth noting. The fatty acid profile of cultivated meat can differ from conventional meat, depending on what lipids are added during cultivation. For dogs and cats — both of whom have specific requirements for omega-3 and omega-6 fatty acids — this is actually an opportunity rather than a liability. Manufacturers can engineer the fatty acid profile of cultivated meat to be nutritionally optimal rather than reflecting whatever the donor animal happened to eat.

Similarly, the absence of bone, connective tissue, and organ meat in a cultivated muscle product means that cultivated meat pet food formulations will require supplementation with minerals (particularly calcium and phosphorus) and micronutrients typically contributed by whole-carcass use. This is not a fundamental barrier — conventional premium pet foods already supplement extensively — but it is a formulation consideration that responsible manufacturers must address.

The Sustainability Argument

The environmental case for cultivated meat in pet food is substantial. As BBC Future's investigation into lab-grown pet food detailed, the conventional pet food supply chain is deeply entangled with the same agricultural systems that drive deforestation, water depletion, and greenhouse gas emissions. Pets in the US alone consume enough animal protein annually to rank the nation's companion animal population among the top ten meat-consuming countries in the world if measured as a standalone entity.

Life cycle analyses of cultivated meat suggest substantially lower land use compared to conventional beef or pork production. Water use is similarly reduced. The critical variable is energy consumption: bioreactors require electricity, and whether cultivated meat delivers a net greenhouse gas reduction depends heavily on whether that energy comes from renewable sources. Science Daily's reporting on cultivated meat research has highlighted ongoing debate about the energy footprint of bioreactor production at scale — it is a genuine complexity that proponents of the technology acknowledge and are working to address through renewable energy integration and process efficiency improvements.

A 2022 review in Future Foods (PMID 35637038) examining sustainable protein sources for pet food placed cultivated meat alongside insect protein and plant-based alternatives as a high-potential direction for reducing the environmental footprint of companion animal nutrition. The authors emphasised that the technology's promise is real but that scale-up economics and regulatory clarity remain the primary barriers.

What Pet Owners Can Expect

Realistically, cultivated meat pet food is not on most supermarket shelves yet — but the timeline is shortening. Industry analysts suggest that commercially available products in the US and Europe could appear within the next two to five years, initially in premium and direct-to-consumer channels. Prices will be higher than conventional pet food at launch, following the pattern of any novel food technology, but are expected to decrease as production scales.

For pet owners motivated by both their animal's health and environmental impact, cultivated meat pet food represents a genuinely compelling future option. It promises all the biological benefits of real animal protein — digestibility, amino acid completeness, palatability — with a dramatically reduced ecological footprint and no reliance on conventional slaughter systems.

References

1. Gasteratos K, et al. "Cultivated meat: a review of the science, regulatory considerations, and sustainability." npj Science of Food. 2022. PMID: 36567230.
2. Lähteenmäki-Uutela A, et al. "The role of alternative proteins in sustainable pet food systems." Future Foods. 2022. PMID: 35637038.