Lead author Márcia G. Alves Galvão, Ph.D., of the Municipal Secretariat of Health in Rio de Janeiro, Brazil, and her team explained that children's
immature immune systems leave them vulnerable to many infections.
Because many digestive sensitivities actually arise from problems with a puppy's
immature immune system, Basics also includes antioxidant - rich LifeSource Bits and gut - pleasing probiotics while completely
leaving out potential reaction - causing ingredients like corn, eggs, wheat, soy and dairy.