Has everything a vegetarian would need from seitan,tofu, tempeh, to soy yogurt, non flour products, organic produce, to natural cleaning products and natural cometics. Only drawback is that it's very expensive. Given that they are the only game in town (there are 3 NaturaSi in bologna), it's better than nothing. these are the other 2.
Via Po, 3 Tel. 051/6241205 (this is the biggest store in bologna)
Via Della Repubblica, 23 Zona Fiera Tel. 051/503902Pros: everything for vegetarian, 3 locations in Bologna