Just 2 bowls a day provide 90% of baby's daily Iron needs Gerber's VitaBlocks Nutrient blend also provides Zinc, Calcium, Vitamin C, Vitamin E and six B Vitamins for healthy growth and development. DHA supports brain & eye development. Probiotics help support a healthy immune system. Single-grain infant cereals are an ideal first solid food to check for food sensitivities and help develop baby's eating skills.