Smoothie King Freebies: How To Get Free Smoothies For A Year 12/21/20 AT 2:04 PM Smoothie King is offering customers the chance to win free smoothies by simply setting fitness goals for the new year and sharing those plans online. As part of the launch of the new Metabolism Boost Banana Passion Fruit blend, the smoothie company is asking fans to share their New Year Health goals and using free smoothies to help keep them motivated. Starting Dec. 29 at 9 a.m. EST, customers can submit their wellness goals at Smoothieking.com/2021goal. Anyone who participates will receive a free 12 oz. Metabolism Boost smoothie of any flavor, which will be loaded on to their Healthy Rewards app account, according to a press release.