I wasn't able to drink the VITALEPH shakes because I'm casein-intolerant, so no milk whey protein for me. So Lucia at OCC told me I could drink Vega One shakes. I still ordered all the pre and post-op multivitamins off the website though. I didn't find that the Vitaleph shakes were really that much more expensive than the ones I get off Amazon, but I don't live in Canada, so it may be different up there.