Shiitake mushrooms, a species of Asian mushrooms, also available in Poland, which is a rich source of ergosterol (provitamin of vitamin D), B vitamins and lentinian. AHCC potential is tested for the possibility of prevention and fight against cancer. Moreover, they have potentials: anti-inflammatory, antiviral, antifungal and immunising the organism. Reducing blood glucose levels. The supplements are used in the pro-health preparations and improving post-exercise renewal and regeneration after injuries, as components of, vitamin, mineral and herbal blends and extracts available at www.muscle-zone.pl.