Researchers tested using mushroom mycelium (the root structure of mushrooms) as a replacement for meat in sausages. They found that using up to 50% mushroom mycelium produced sausages with good quality, improved moisture retention, and enhanced umami flavor while reducing fat content. The sausages made with mushroom mycelium were also more tender and juicy, though higher replacement levels affected consumer preference. This research suggests mushroom mycelium is a promising sustainable alternative protein source for meat products.