taste
what about vitamins? proteins and other nutrients
like omega 3 fatty acid majorly found in fishes
You can take them as supplements. It’s the same for your body. Oh and you are already doing that, because they give supplements to the animals they raise and kill, we are just eliminating the middleman.
Cyanide occurs naturally. Water can be made in a lab by mixing Hydrogen and Oxygen and applying heat.
Is Cyanide good for you when occurring naturally and water bad for you when artificially synthesized?
There are plenty of plant sources of Omega 3. Flax seeds, walnuts, soybeans, and canola oil all have decent amounts of omega 3 in them. As for protein, legumes generally have a bunch.
Really, the only thing a vegan needs to supplement is B12, but even that gets added to a bunch of stuff like breakfast cereals and plant milks if you consume those.
Flax seeds, walnuts, soybeans, and canola oil all have decent amounts of omega 3 in them
They also take an enormous amount of resources to cultivate and process at industrial scale.