Methods. Healthy subjects, ages 18-60, living in the Seattle area were recruited to participate in an 8-week trial onsite at our SILO facility. Subjects were randomized to receive an ad libitum supply of either classic BB's or BB-Crave. Study diets were otherwise identical. Questionnaires relating to mood, appetite, acceptability, and palatability were administered daily. Blood draws were administered at baseline and weekly thereafter.