I have heard speculation along the lines that artificial sweeteners jump start the insulin response but that there is no glucose in the blood from the artificial sweeteners and as a result it somehow backfires and results in insulin resistance. I have changed from aspartame and splenda to stevia, but presumably even stevia would have this same drawback. I have tried at various times to cut back on my sweetener, but this is one habit I have not been able to kick. I may need to make it a higher priority, but I can certainly succeed in weight loss using 0-cal sweeteners as a crutch.
Hoping to earn the user name NoYoyoMa...