The artificial sweeteners can have negative side effects depending on the individual as well, so while that may help some people, it can also be a big negative for others (can have impact on sugar levels resulting in increased insulin, which triggers the body into thinking it needs more sugar for proper balance, but person then takes in more artificial stuff and the body pumps out more insulin, and the cycle continues).
While sugar is a chemical, it is a "natural" chemical the body is designed to ingest and process. Yes there can be overloads and too much of anything is not healthy. However, some studies indicate that there are a few types of cinnamon that can help naturally balance a sugar overload.
So much we do not understand yet. I knew they were doing gut bacteria studies, but until Gulo's post did not know the info he provided. Still, I'm a tad gun shy these days when we are constantly dealing with scientific studies that contradict each other. Obviously you have to consider the source, right? The anti-sugar scientists are going to produce their data points and potentially say "use artificial sweeteners" while the pro-sugar lobby is going to say "artificial sweeteners and HF corn syrup are unhealthy" and the corn grower lobby is going to say all of that data is skewed hogwash and so on.
It gets very difficult to determine the difference between "real" and "junk" science these days. Just look at all the people who refuse to have their children vaccinated due to a bogus link to autism. It only takes an accredited slimeball scientist to create mass hysteria, and now we have the return of diseases that were at one point virtually non-existent in the US.
We are too caught up currently in trying to black/white everything and have lost sight of fact that each individual is unique. Sure they can be grouped loosely together, but no group should be put forth as an all-defining one, which means it must be the responsibility of each person to determine what is best/worst for them and for once hold themselves accountable for their actions.