This study examined three popular edible mushroom species from Poland to understand their nutritional benefits and safety. While all three mushrooms are rich in beneficial compounds like antioxidants and immune-boosting polysaccharides, Boletus edulis (porcini) accumulates concerning levels of cadmium from soil. The research shows these mushrooms are safe in normal amounts, but eating excessive quantities of porcini mushrooms could exceed safe limits for toxic metals, especially for people in polluted areas.