> Nope. Some aminoacids and compounds are only present in meat.

https://en.wikipedia.org/wiki/Essential_amino_acids_in_plant...

Notice that many of the plants high in some of these aren't that common, e.g. what percentage of people regularly eat pumpkin seeds or spirulina?

> So, not every person is the same, and assuming that every human being works the same is a big mistake made by modern medicine.

It's not that you need the same diet as every other person, it's that you have to eat the specific things you need, which a random selection of plants may or may not contain in the right amounts.

> For example, my brain chemistry is also different and I consume B12 much more than a typical human, so I need to use B-complex supplements more.

B12 in particular is a pain because it's only produced by bacteria (commonly found in soil) so the options are unwashed vegetables, meat from animals that eat unwashed vegetables, or supplements. And on top of that because of the way it's absorbed, a B12 pill either has to be taken multiple times a day several hours apart or has to be 100x as much to make up for the absorption rate falling off a cliff after a threshold amount which is below the RDA.