LITTLE STEPS Growing Up Milk 800g Stage 3, (12 months to 3 years) Nutritionally tailored for young children from 12 months onwards It contains Calcium and Vitamin D for the normal growth and development of bones and Vitamins A and C to support the normal function of a childâ??s immune system. SMA LITTLE STEPS Growing Up Milk is also enriched with Iron to help support normal cognitive development and Omega 3 & 6 and iodine to help support normal growth.