So, while Riley is doing VERY well on is "green anti-cancer diet", unfortunately my clothes, furniture, rugs, floor, etc. are not. I do not know if it is the kelp, spirulina, or chlorella, or maybe is is all three, but something that is GREEN has or at least has tried to stain just about everything in my home that can be stained. Since I have gone back to feeding riley outside again (on the porch) and I am religeous about cleaning off his face as soon as he is done, it has gotten much better, though I am still finding new green stains here and there.