I have eaten hundreds of expired protein bars over the last year. Supplement places often sell them for 50 cents a bar or like $5 for a box of 12 instead of the usual ripoff 20 to 25 a box. They are fine as long as they are only 3 months or less expired, which they usually are. Dont write them off cause most supp companies put the expiration date months before the bars actually go bad, dont pay top dollar for supplement bars caus ethey are a ripoff unmless they are on clearance