Can you please guide me on foods or ideas to help a 12 month old gain weight?

Help gain weight: There are several things that a 12 month old can eat to gain weight. First, you can serve the baby full fat cheese and yogurt. You can melt cheese on other foods like veggies. Make sure the baby drinks 16-24 ounces of whole milk a day. Before bed, you could give the baby pediasure instead of the nighttime bottle each night.