Among the results in the study by Drs. Mohamed B. Abou-Donia, Eman M. El-Masry, Ali A. Abdel-Rahman, Roger E. McLendon and Susan S. Schiffman is evidence that, in the animals studied, Splenda reduces the amount of good bacteria in the intestines by 50%, increases the pH level in the intestines, contributes to increases in body weight and affects the P-glycoprotein (P-gp) in the body in such a way that crucial health-related drugs could be rejected. Turner noted that the P-gp effect "could result in crucial medications used in chemotherapy for cancer patients, AIDS treatment and drugs for heart conditions being shunted back into the intestines rather than being absorbed by the body as intended."
The study was conducted using male rats over a period of twelve weeks. The manufacturers of Splenda also used a rat study when they applied for and received approval to market the product from the U.S. Food and Drug Administration. At the time, the findings from their rat studies were extrapolated as to possible effects on humans. This is standard FDA practice and this study is consistent with that practice.
Turner said, "This report followed accepted policies and procedures and the results make clear the potential for disturbing side effects from the ingestion of Splenda. It is like putting a pesticide in your body. And this is at levels of intake erroneously approved by the Food and Drug Administration. A person eating two slices of cake and drinking two cups of coffee containing Splenda would ingest enough sucralose to affect the P-glycoprotein, while consuming just seven little Splenda packages reduces good bacteria." Although the effect of consuming Splenda does not result from a one time use, the side effects do occur after accumulated use. Turner also noted unmistakable evidence that Splenda is absorbed by fat, contrary to the claims of Johnson & Johnson.
Turner announced, "We are calling today on the FDA to immediately accept our petition filed over a year ago and initiate a review of its approval of sucralose and to require a warning label on Splenda packaging cautioning that people who take medications and/or have gastrointestinal problems avoid using Splenda. The new study makes it clear that Splenda can cause you to gain weight and lose the benefits of medications designed to improve and protect your health. The FDA should not continue to turn a blind eye to this health threat."