We try to encourage the use of whole foods, things the body recognizes as food.
Seems that Splenda is not anything like a whole food, and it sure heads for the kidneys:
"Splenda is made from sucralose, which was discovered in 1976 at Queen's College, London, England. Researchers took the three hydroxyl groups found in a sugar molecule and replaced them with chlorine atoms. This stabilizes the bond between the sugar molecules and allows most of them to pass through the body without being absorbed.
Simply put, the microorganisms that live in the body are unable to break down the sucralose bond, so the body only absorbs about 15% of the material. Sucralose is extremely water-soluble and is rapidly excreted from the body in urine."
Can't see that this product should be recommended for anybody...