Mycoprotein

Mycoprotein (lit. "protein from fungus"), also known as mycelium-based protein or fungal protein, is a form of single-cell protein derived from fungi for human consumption.

Though these products derived from mycoprotein often are referred to as plant-based, this assortment is per definition wrong as the fungal kingdom, including mushroom-forming species as well as yeasts and molds, are separate from those of animals (Animalia) and plants (Plantae).

With that said, mycoprotein should neither be confused with mushroom-based products, as the part of fungi grown for mycoprotein is the vegetative growth of the fungi, called mycelium, which can be compared to the roots of the organism. Metaphorically, the mushroom and the mycelium are as similar as a fruit is to the roots of its tree.