Splenda does not increase risk of diabetes. It's not unhealthy. This article is nonsense. My favorite salad dressing uses a quarter cup of splenda, it's fine.
Some study done a while ago said that eating things that are sweet, but with no caloric value, make you crave other caloricly dense sweet things, which can lead to an increase in diabetes risk. The key ingredient to that increase, is eating sugary things, not eating splenda.
This is stupid.