Expiration dates are there for a reason. I wouldnt risk it. If you have a bad reaction then the company can blame you since you consumed the product after it was expired.
"If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there,...
This may be the source but looking at different profiles of Whey protein I see some say one gram of sugar and others say more. Ten grams just seems a bit extreme.