Does anybody have any experience in switching their infant or toddler to soy or almond milk due to reflux, lactose intolerance, or other digestive issues? My one year old has been reacting terribly to whole milk, so we want to try soy milk from now on. Any success stories?

Starting to feel like my son may be vegan! He hates meat and dairy so much! Running out of things to feed him. Other than soy milk, are there other protein alternatives?

Recommendations? Thoughts? Advice?