Duocal

Does anyone add duocal to their lo’s rice milk? we are almost 50/50 oat milk & Neocate 1+ and hopefully if things go well we will be 100% oat milk. I am worried about fat though. Our pedi said that rice milk (which didn’t work out for us) or oat milk alone is fine for landen b/c his diet is pretty good, but I disagree. (first time I’ve ever disagreed with our newer ped about anything). I think the oat milk needs something added. I know I can use oils, but I’d like him to get a set amount every day so I’ve been looking into Duocal. Any ideas on how to add Duocal to his diet? Any experiences?