GNC takes 25% off most items sitewide via coupon code "VORTEX". Shipping adds a flat $1.99. That's among the better sitewide discounts we've seen from GNC in recent months, although we saw 30% off just over a week ago. Some exclusions apply. Deal ends January 31. A couple best bets, with prices after the coupon:

QuestBar Protein Bar 12-Pack in Cookie Dough for $20.24

Mud 2-oz. Energy Gel 12-pack in Chocolate Truffle (pictured) for $23.99