From Time.com: Can Sugar Substitutes Make You Fat?
What they mean is that like Pavlov’s dog, trained to salivate at the sound of a bell, animals are similarly trained to anticipate lots of calories when they taste something sweet — in nature, sweet foods are usually loaded with calories. When an animal eats a saccharin-flavored food with no calories, however — disrupting the sweetness and calorie link — the animal tends to eat more and gain more weight, the new study shows.
Our bodies are experiments for all sorts of chemicals that we’ve created. But, how much do we really know about what we’re eating. The long term impacts of eating processed foods are just beginning to show themselves and we may not like what we’re finding.