re the whey protein - if it's what I'm thinking, it's a protein supplement that is usually bought in powder form and added to a drink. Health shops usually sell them. They come from animal milk, so I'm not sure how that works with the no dairy. Maybe the casein is removed?

There's also soya protein powder, rice, hemp, egg and pea. I'm trying the rice, which I ordered online, to see if it helps any. I was tempted by the hemp as it has omegas, but also a lot seem to have chlorophyll, which I believe isn't good to take with the fillings in?