Tate & Lyle artificial sweetener brand Splenda is rolling out new content featuring popular food-related celebrities for its mobile advertising campaign following a successful initial push that saw a 900-percent engagement increase through Tumblr and doubled the brand's reach through Yahoo. Big names in food such as Laura in the Kitchen, Dr. Janet Brill and Brit Morin are the faces of the next facet in Splenda's campaign, bringing low-fat option recipes to consumers via Tumblr and Yahoo.