I've just searched it, what makes this superior to regular multi vitamins?

I eat plenty of protein as a devoted carnivore, so don't want too much of that. I want a viable alternative to the horrors of veggies. Plus Wiki says other protein sources are much cheaper than taking this. I think I prefer chicken breasts more in that regard. Still, I don't eat enough, so any kind of boost would possibly be useful.

It seems there are plenty of health benefits, but also some worrying elements.

I just read it here.

Spirulina (dietary supplement) - Wikipedia, the free encyclopedia