Researchers tested whether mushroom mycelium grown using agricultural waste could be safely added to chicken feed. The mycelium, rich in beneficial compounds like β-glucans, was added to broiler diets at varying levels for 35 days. Results showed that chickens fed diets containing up to 5% mushroom mycelium performed just as well as control chickens, with no negative effects on health, digestion, or metabolism, suggesting this sustainable feed ingredient could help reduce competition between animal feed and human food.