Not a citrus fruit, pineapples are a good way to get much needed vitamin C over the winter. Since pineapple is high in citric acid, baby should be monitored for diaper rash when introducing this tropical treat. Consider pineapples when making kabobs to add a sweet flavor profile to any combination. Have your kids assist in defining colors, tastes and textures of ingredients - i.e. fibrous, sweet and tart - building vocabulary while building kabobs.