Clif Bar Inc., the nation's third-largest maker of energy and nutrition foods, has named WongDoody of Los Angeles as its full-service advertising agency following a review of 25 agencies. WongDoody will provide strategic and creative services to assist Clif Bar Inc. in advertising its three brands -- Clif Bar®, the energy bar providing nutrition for sustained energy; LUNA(TM), the whole nutrition bar for women(TM); and Clif SHOT(TM), the energy gel delivering quick energy to endurance athletes.