Should I give a multivitamin to my 21-month-old daughter if she doesn't eat much?

It is important to focus on providing a diverse and high-quality diet for your child before considering giving them a multivitamin. A varied diet that includes foods from all food groups will provide your child with the necessary vitamins and minerals they need. If your child eats little during meals, you can always offer snacks throughout the day. Multivitamins have not been shown to have a general health advantage over a varied diet, except in specific situations where a doctor or nutritionist may recommend them. It is important to remember that multivitamins are not necessary for the majority of children.