most common mistake in preparing infant formula milk . Breast feeding. 

breast feeding is best for any new born .. exclusive breastfeeding that means only breast feed no other things should be given to a newborn baby just after birth for 6 months of age after which complementary feeding should be started .
sometimes mother is not available or not able to give breast feeding than only infant formula should be considered.
many a times I have observed parents do mistakes in preparing formulas that leads to infections , poor growth and malnutrition in babies .
this video by a senior consultant Pediatrics will help you to do write things for babies
Dr AVYACT AGRAWAL
MBBS MD Pediatrics