The major mistake is in the second sentence. Animals do not derive all of their fully formed nutrients from plants.
Otherwise, they would look and act like plants. We both know that isn't true. Don't even even think that way. Carnivores could not exist.
It is a simple fact of biochemistry that humans cannot synthesize several of the 20 common amino acids needed in human proteins.
How about Phenylalanine, if you need an example.
I don't doubt that if you work hard enough at it, you can scare up a complete diet from plants.
You may find that your Respiration (and some Net Production) exceeds your Gross Production.
Thus you do have a complete diet as you slowly starve to death.
Otherwise, they would look and act like plants. We both know that isn't true. Don't even even think that way. Carnivores could not exist.
It is a simple fact of biochemistry that humans cannot synthesize several of the 20 common amino acids needed in human proteins.
How about Phenylalanine, if you need an example.
I don't doubt that if you work hard enough at it, you can scare up a complete diet from plants.
You may find that your Respiration (and some Net Production) exceeds your Gross Production.
Thus you do have a complete diet as you slowly starve to death.