This chapter provides a comprehensive guide on the key information that must be communicated to consumers regarding mushroom and mycelium-based products. It begins by examining the specific naming conventions applicable to mycelium products. The focus then shifts to the regulations governing claims made on these products, particularly the use of “plant-based” claims as well as health and nutrition claims associated with mushrooms and mycelium-based items. The chapter further offers an overview of additional voluntary information that food businesses may choose to provide. This includes an exploration of the concept of clean labelling, criteria for vegan and vegetarian designations, requirements for organic certification, and a discussion of recent regulatory developments concerning the use of environmental claims in food products.