Weight loss wasn't much more than those given saline solution as placebo. They don't say what the blood glucose effects were for the saline solution, but it sounds like maybe those were the more significant effects.

I wonder about the glucose monitoring device. Hopefully it just tracked their glucose, and gave the patients no information on their own glucose levels. That might have an effect on what people eat. Also knowing that you're in a study with weight loss as a desired outcome can have an effect. What the patients knew or didn't really matters, here.

The article linked to the wrong study, and searching the author's name, it looks like the actual study's not on pubmed yet.