I would email them again, i agree it seems unlikely that the values they give can be right. However if they are, I'll be very happy! Love peanut butter!
Out of interest have you been able to check BG before and after it to see what's happening?
Hi,
I think you might be looking at the sugar content rather then the carbs. Had a look online and what I can find for sainsburys crunchy peanut butter it says carb content is 12.6g per 100g and sugar content is 3.9g per 100g.