t think the poly vi sol has all of the nutrients that are contained
in formula, especially with the added
DHA and ARA and other things they put
in to make it more like breastmilk nowadays.
How is his waeight gain, do you know? What type of formula did you try? Was it milk based or soy based? There are so many choices out there that one of them is bound to work well for him. Have you tried the gerber good start sensitive? Or maybe enfamil AR, isomil is a good soy one.