New & Improved. The Perfect First Solid Food for Baby. DHA + Choline For healthy eye & brain development. Pre & Probiotics For immunity support. Dr. Sears Recommended Happy Bellies is the first baby cereal with prebiotic + probiotic immune support. It is also the only organic cereal with DHA and choline for healthy brain development. Happy Bellies is formulated and recommended by Dr. Bob Sears, renowned pediatrician and dad. The Happy Baby Difference.