Nutrition Olive Vertigo feeds on micro flora such as bacteria and fungi found growing on living and dead plants. (Schultes 2011) Food is obtained by scraping it up using its radula, a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the mouth. (Butterfield 2008) Once food has entered the mouth, digestion begins with saliva that starts to break down food. The food is then processed through the crop and into the stomach, where the bulk of digestion takes place. The food is then passed through the intestine and excreted via the anus, which is located above the snail's "head." The picture provided is not of the Olive Vertigo, but is a general snail layout for reference.