Madam u dis not mention your daughters weight and birth weight. So if feel that your daughter is under weight do not hurry to pick her weight up which will cause you to feed your child forcefully which causes child to develop aversion on food. Prepare a home made diet with calorie rich food in small quatity, prefer rice with other vegetables, egg and meat. Do not give too mich of milk or bottle feeding. To make food calorie rich add ghee , dry fruits to it. Avoid junk food including biscuts., choaclates etc. Use differeent colour bowels to feed the child. And about you doubt of health drinks it is not appropriate age to start. U shlould wait till 2yrs to start a health drink. Finally low weight gain can be cause of any chronic ilness go to your pediatrician and have a proper check for any infection and anemia. Thank you