GNC Stores is offering its customers who go to the gym a FREE GNC Gold Card and shaker cup for FREE with any purchase and this printable coupon for a limited time. Claim the coupon on Facebook. There’s no purchase minimum. Proof of gym membership (e.g. a gym membership card) is required. Offer expires February 28, 2014.

Gold Membership normally cost $15 and it includes special pricing at GNC stores and online (up-to 50% off), and much more.