Let's be clear, there hasn't been any comprehensive study indicating significant health risks associated with erythritol when consumed in moderate amounts. Erythritol has undergone extensive safety evaluations by regulatory agencies such as the U.S. Food and Drug Administration (FDA), the European Food Safety Authority (EFSA), and others, which have generally affirmed its safety for human consumption. Thomas DeLauer has a great explanation here.
Erythritol, the ingredient in our fasting drink FAST:RX, typically does not spike insulin levels. Unlike sugar (sucrose) or other carbohydrates, erythritol is a sugar alcohol that is not metabolized in the same way by the body. When consumed, erythritol is absorbed into the bloodstream from the small intestine and then excreted unchanged in the urine. It does not significantly affect blood sugar or insulin levels, making it a suitable sweetener for individuals with diabetes or those following a low-carbohydrate or ketogenic diet. Learn more on VeryWellFit.