As Dr. Daniel Mowrey reported: "More elaborate safety tests were performed by the Japanese during their evaluation of stevia as a possible sweetening agent. Few substances have ever yielded such consistently negative results in toxicity trial as have stevia. Almost every toxicity test imaginable has been performed on stevia extract (concentrate) or stevioside at one time or another. The results are always negative. No abnormalities in weight change, food intake, cell or membrane characteristics, enzyme and substrate utilization, or chromosome characteristics. No cancer, no birth defects, no acute and no chronic untoward effects. Nothing."

Numerous studies have been done worldwide on the safety of Stevia rebaudiana, all with positive results. It has been shown to regulate blood glucose levels, be diabetic safe, non-carcinogenic (not cancer producing), aid in the suffering of hypertension, along with Hiroshima University School of Dentistry and the Purdue University Dental Research team, stevia has been found to retard plaque on teeth and suppress antibacterial growth.

Dr. Rebaudi started his studies of stevia in 1900, more studies by Kober in 1915, Pomaret & Lavielle in 1935 and the list continues. Please view some of the link below to view only a portion of the studies completed so far on the safety of stevia, or read the quotes given by many regarding the safety of stevia.
Yet, the American and Canadian governments still will not approve stevia as a food additive, only as a dietary supplement. It is this author’s personal opinion that I would be very curious to see the toxicology reports on aspartame and sugar if put through the extensive testing done so far on stevia.


Links to some safety reports published about the safety of stevia

Department of Biology, Chiang Mai university, Thailand
Dominant lethal test in rats treated with some plant extracts.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11414451&dopt+Abstract