Apparently even the taste of sweetness is enough to make the body think it is 
sugar and react accordingly.  If you shouldn't have sugar, don't have the 
substitutes. Learn to taste food as it really tastes without sweetening. 
Strikes me that sugar does less harm than the chemical substitutes, anyway.  
But give it up or absolutely minimise it.
I wonder whether a little date syrup or molasses every now and then would 
satisfy the sweet yearning.
R

  ----- I don't think there's any "free ride" with sweeteners.