Food Allergies & Liquid Diets

I'm hoping to have WLS later this year. In the mean time, I'm researching everything I can! One of my concerns is the liquid diet phase before & after. I'm allergic to dairy, soy, wheat & corn. It seems most protein powders/liquids focus heavily on dairy & soy. Does anyone know of some products, a brand or a good site to search? Thanks! A

Ummm.... I guess my question would be how allergic? Are your symptoms intolerable or are they something you can live with? In my (limited) knowledge, I thought protein drinks were whey or soy based. Others will know more than I but that may be a problem. Good that you are looking at it now.