If Stevia triggers an insulin response, then it is not good for weight loss.
It's probably better than carbs/sugar as you don't have the sugar available in the bloodstream, but it seems your body tries to do the same thing with it anyway.
The "Seven Deadly Sins"
• Grains (wheat/rice/oats etc) . . . . . • Dairy (milk/yogurt/butter/cheese etc) . . . . .• Nightshades (peppers/tomato/eggplant etc)
• Tubers (potato/arrowroot etc) . . . • Modernly palatable (cashews/olives etc) . . . • Refined foods (salt/sugars etc )
• Legumes (soy/beans/peas etc)