Not saying that the issues can't be solved, but pisciculture is not a free lunch from the sustainability point of view.
Isn't most of that only true for carnivorous or omnivorous fish? I knew there were problems with finding small fish to feed the bigger fish, but I was under the impression that herbivores and filter feeders could be raised sustainably. I.e. farming tuna would be extremely difficult and costly to the environment, but you can farm things like tilapia and catfish fairly sustainably.
They aren't fish that a lot of people are excited to eat, unfortunately.
Yes. Check out my other comment about beans in this thread. All the dishes I mentioned there are pretty tasty. And so are lentils, if by that you meant masoor or masoor dal, or even if you meant tuar dal). And all those are high in protein as you say.
>sibo
A typo? An acronym?
Do you have a study that confirms this? As far as I know this is a myth. See: https://en.wikipedia.org/wiki/Phytoestrogen#Effects_on_human...
That said, soybeans are mostly used to feed livestock, so if you just eat meat instead of soy, that's likely not any better for environment.