FIRST FORMULA is a complete diet for baby birds from their first "day-one" feeding and is also used to hand-feed older baby birds. It is an ideal supplement for feeding underweight adults that have been injured or are ill. FIRST FORMULA provides carbohydrates and vegetable fat to promote weight gain as well as extra protein, vitamins, minerals, four digestive enzymes and eight species of beneficial probiotic bacteria. It has a fruit flavor that birds love.