Fake meat is any food designed to replicate the taste, texture, and appearance of animal meat without using slaughtered animals. Most products on the market today are made from plant proteins like soy or peas, though newer categories include meat grown from animal cells in a lab and protein produced through fermentation. The global meat substitute market is valued at roughly $8 billion in 2025, and it spans everything from fast-food burgers to grocery store chicken nuggets.
The Three Main Categories
Nearly all meat alternatives fall into one of three groups: plant-based, fermentation-based, or cell-cultivated.
Plant-based products are by far the most common. These use protein extracted from soybeans, peas, wheat, or other crops, then process it into something that looks and chews like ground beef, sausage, or chicken. The Beyond Burger uses pea and rice protein, while the Impossible Burger relies on soy protein concentrate. Both are widely available in grocery stores and restaurants.
Fermentation-based products use fungi or microorganisms grown in controlled tanks to produce protein. The best-known example is mycoprotein, a fungus-derived protein that has been sold since the 1980s and has a naturally fibrous texture similar to chicken breast.
Cell-cultivated meat (sometimes called “lab-grown” or “cultured” meat) is the newest category. It starts with actual animal cells, typically stem cells taken from a living animal’s muscle tissue, and grows them in a bioreactor. The cells multiply, differentiate into mature muscle tissue, and are harvested as real animal protein, just produced without raising or slaughtering an animal. The FDA completed its first safety review of a cultivated meat product in November 2022, and the USDA oversees labeling and final production. Both agencies share regulatory authority under a formal agreement established in 2019.
How Plant Proteins Become “Meat”
The key manufacturing step for most plant-based meats is a process called high-moisture extrusion. Plant proteins and starches are fed into an industrial machine that applies heat, pressure, and moisture simultaneously. Under these conditions, the proteins unfold and then reassemble into layered, fibrous structures that mimic the grain of animal muscle. The temperature, screw speed, and water content all influence whether the final product comes out with a ground-beef texture or something closer to a chicken strip.
Once the base protein is formed, manufacturers add fats, binders, and flavorings to complete the illusion. Coconut oil and sunflower oil provide the juiciness and mouthfeel of animal fat. Methylcellulose, a plant-derived binding agent, is one of the most widely used additives in the industry. It holds patties together, gels when heated (the opposite of most gels, which melt), controls moisture loss during cooking, and keeps the texture soft. You’ll find it in both Beyond and Impossible products.
The Impossible Burger adds one more trick: soy leghemoglobin, a protein originally found in the roots of soybean plants and now produced through fermentation. It contains a heme molecule, the same iron-carrying compound that gives animal blood its red color. This is what makes an Impossible patty look pink when raw, brown when cooked, and produce the savory, slightly metallic aroma associated with beef on a grill.
Nutrition Compared to Beef
Plant-based meats are not nutritionally identical to the animal products they replace. Some differences work in your favor, others don’t.
A standard 4-ounce Beyond Burger patty contains about 14 grams of fat and 5 grams of saturated fat. An Impossible Burger patty is similar at 13 grams of fat and 6 grams of saturated fat. Both are comparable to an 80/20 beef patty in total fat, though plant-based options tend to be lower in saturated fat overall. Across the broader market, the average saturated fat in plant-based meat products runs about 1.4 grams per 100 grams, compared to 4.4 grams for beef.
Sodium is where plant-based products consistently lag behind. The average plant-based meat contains about 660 milligrams of sodium per 100 grams. Raw beef contains roughly 60 milligrams. That’s an eleven-fold difference, and it exists because salt is essential for flavor and texture in processed plant proteins. Some products on the market contain over 2,600 milligrams per 100 grams, so checking labels matters.
Protein quality also differs. Scientists measure how well your body can use a protein source with a score called PDCAAS, where higher means more complete and digestible. Beef scores 1.24. Soy protein scores 1.05, which is still quite good and provides all essential amino acids in adequate amounts. Pea protein scores 0.73, meaning it falls short on one or more essential amino acids. If your diet includes a variety of protein sources throughout the day, this gap is easy to fill. If plant-based burgers are your primary protein, soy-based options offer a more complete amino acid profile than pea-based ones.
Environmental Tradeoffs
The environmental case for plant-based meat is substantial. Life cycle assessments comparing plant-based patties to beef patties find that the plant versions produce 81 to 87 percent less greenhouse gas emissions per unit of nutrition delivered. They also cause 92 to 95 percent less marine pollution from nutrient runoff. When researchers factor in the carbon opportunity cost of land (essentially, what that grazing land could absorb in carbon if it were reforested), the climate advantage of plant-based patties grows by another 25 to 44 percent.
These numbers apply specifically to plant-based products. Cell-cultivated meat requires significant energy to run bioreactors and maintain sterile conditions, and its environmental profile is less clear at scale since commercial production is still extremely limited.
What Cell-Cultivated Meat Actually Involves
Growing meat from cells is conceptually simple but technically demanding. Scientists take a small tissue sample from a living animal, isolate the stem cells, and place them in a culture vessel filled with a nutrient-rich liquid. The cells multiply over days to weeks, then are triggered to differentiate into mature muscle fibers. Scaffolds, biocompatible materials that give cells a physical structure to grow on, help shape the final product into something with a more realistic texture rather than a paste.
The first lab-grown burger, unveiled in 2013, took about three months to produce and cost over $330,000. Prices have dropped dramatically since then, but cultivated meat remains far from cost-competitive with conventional beef or even plant-based alternatives. In the U.S., both the FDA and USDA must sign off before any cultivated product reaches consumers. The FDA oversees everything from cell collection through growth and differentiation, then hands off to the USDA for harvesting, processing, and labeling. Commercial imports of cultivated meat products are currently not allowed.
What the Labels Mean
You’ll see a range of terms on packaging: “plant-based,” “meat-free,” “meatless,” “meat alternative,” and occasionally “cultured” or “cell-based.” In the U.S., the USDA must pre-approve all labeling for cultivated meat products made from livestock or poultry cells. Plant-based products fall under FDA jurisdiction and follow standard food labeling rules. There is no single regulated definition of “fake meat” itself, which is why the ingredient list and nutrition panel remain the most reliable way to understand what you’re actually eating.