Does Pediasure really supplements well enough if the child (17 months) doesn't take food?

I'm not sure how well these milk brands are touted as, but there is no substitute for balanced diet. These milks are solely supplements which means that your main nutrition should still come from the food you take. If your child is eating poorly, try other methods such as incorporating diced veggies into his favorite meal or making those cute bentos. Have meals together so he/she will be encouraged to eat up as well. And however I don't approve of toys and ipads during meals, but if this will coax him into eating, it's worth A try :-)