I have 2 brands of the same product. The ingredient list is the same for both. Neither contains any artificial sweetener or alcohol. Both have been processed the same way and both are about 21% protein. Numbers are per 100g serve.
Energy Carbs Sugars Fat SaturatedFat Fibre Sodium
Brand A 1550kJ 11g 1g 21g 13g 28g 30mg
Brand B 1620kJ 39.5g <1g 23g 14.5g not stated 16mg
What is the difference? Why?
If you would vary your insulin depending on which brand you were using, ask yourself whether you really get it.
Added 29.4: if you understand the above, you should also understand why the food label on a related grocery item I bought at Woolies today showed ingredients adding to 120g/100g. (no, I was not adding the sugar and total carbs together, or counting both the saturated and total fat, etc)