7/11 Free Slurpee Day

kon_e3

So today is 7/11's free slurpee day. I checked out their nutritional data and was surprised that most of the sugar free ones 4 out of 5 if I'm not mistaken are only 20 cals with 5g of fiber. Not sure how that's possible, maybe someone here will clarify, but I consume a fiber supplement that is 20 cals for 4g of fiber (Heather's Tummy Fiber). If their macros are accurate, I can't believe I didn't discover that sooner.