Human milk is designed for infants. Breast milk is the best food for your baby. It has the best nutrition and helps to keep your baby from getting sick. Breastfeed baby does not need solid foods for at least six months one year.
To other mothers they have to give their babies an infant formula because breastfeeding does not work for them. There are many kinds of formulas to choose too. However, you must select the appropriate formula for your baby. You may consult your physician on these. One of the formulas are "ready to feed" which mean it does need to mix anymore. Others formulas are concentrated liquid while others is in powder from that should mix with boiled water.