How are stevia sweeteners metabolized?
Based on studies conducted in the past several years, the Joint FAO/WHO Expert Committee on Food Additives (JECFA) has concluded that stevia sweeteners are metabolized by a common pathway. This begins in the gut where the steviol glycosides are broken down to steviol. Steviol is excreted in the urine as steviol glucuronide and the metabolized components of steviol glycosides essentially leave the body and there is no accumulation.