Hi Caroline,
I am not sure if you will find the information below of any use, I did so thought I would share. It is from the "American Diabetes Association" and these are their recommendations to when it comes to counting either Total or Net.
"If you have Type 1 Diabetes and do not use an insulin-to-carb ratio (ICR) or if you have Type 2 Diabetes:
Count the Total Carbohydrates listed on the Nutrition Facts Label
Do not subtract any fiber or sugar alcohols
If you have Type 1 Diabetes and use an insulin-to-carb ratio:
If fiber is AT LEAST 5g or more, you may subtract HALF the amount of fiber from the total carbohydrates
Example: If your food has 20g of total carb and 5g of fiber, you can subtract 2.5g of fiber from the total carbohydrates = 17.5g Total Carb
If your food has 20g of total carb and 4g of fiber, you don't subtract anything
If sugar alcohols are AT LEAST 10g or more, you may subtract HALF the amount of sugar alcohols from the total carbohydrates
Example: If your food has 20g of total carb and 10g sugar alcohol, you can subtract 5g of sugar alcohol from the total carbohydrates = 15g Total Carb
If your food has 20g of total carb and 8g sugar alcohol, you don't subtract anything"
I sounds complicated at first if you are indeed counting your carbs like I am, but it gets easier with practice.
Thanks