however ,before age of 4-6 the baby must be dependent on milk only after this age .
>Ready or Not. A baby’s digestive system is not thought to be well prepared to process cereal until about 4 to 6 months of age. When he is old enough to digest cereal, he should also be ready to eat it from a spoon.
>Too Hard to Handle. Offering cereal in a bottle (or even on a spoon) before babies are developmentally ready can increase the likelihood of gagging and/or inhaling the thickened mixture into their lungs. Unless there’s a medical reason for giving it early, it’s not worth jumping the gun.
>Overfeeding. Perhaps the biggest reason not to take the addition of cereal in a bottle too lightly relates to overfeeding. By instinct, your baby knows how much breast milk or formula to drink based on volume, not calories. While it is said to be difficult to overfeed a baby, this applies when you’re talking about breast milk or formula alone. As soon as cereal gets added in, things get a little murky so murky, in fact, that putting cereal in the bottle is considered by some to be a form of force-feeding that can cause babies to “overdose” on calories.
Adding cereal to a bottle of baby formula is sometimes recommended for babies with reflux. You do this by adding one tablespoon of rice cereal for every ounce or two of formula your baby drinks. The added cereal makes the formula thicker, so that it might stay down a little better.
Two baby formulas are available that may help kids with reflux so that you don't have to add cereal on your own. These include Enfamil AR and Similac Sensitive RS.