Mandy,
solid food usually is introduced between 4-6 months, u start with only one spoon of the mixed product so put a tiny bit of powder, and if u are brest feeding mix it with the milk and introduce it to baby. they usually recommand never give solid food in the bottle, use a very small spoon. also my doctor recommanded that i dont start with rice cereal and he said it usually makes babies constipated, he suggested me to start with apple sauce that i made at home, and then cooked mashed carrots, stay away from citrous till the baby is One (causes allergies) as well as all teh berries and egg white. hop that helps,
Mandy