Regarding the difference in yields between organic and chemical ...
I cannot compare since in my vegetable orchard I only cultivate without any chemical product ... on the other hand I use seeds and plants from large-scale garden centers. My production is ridiculous compared to my father who balks at him a lot of crap on his vegetables ... (he also has more time to take care of them) my biggest vegetable garden fiasco having been the cultivation of rustic "organic" tomato plants ...
To compare, we should not rely on a few isolated cases, but globally on all agricultural production. To do this, you must consult the organizations which draw up comparative statistics between bio and chemistry.
for exclusively vegetarian food
Also learn about the evolution of homnids ...
I'm talking about comparison
scientific whose work by Cuvier (not questioned to date) on anatomy and to date it has not significantly changed between our distant "ancestors" and currently.
compared and at the time there was no lobbies of the bidoche ....
It's obvious ! However, we are no longer in the prehistoric period when survival was more important than dietetics.
The pickers were quickly superseded by the picker-hunter hunters. *
False or rather distorted idea. That occasionally humans have, depending on the circumstances, places, adopted a more varied diet than just plant, it is obvious. This does not make it an ideal, physiological mode.
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Marie Jeanne, one of my ex neighbors, a phylo teacher, organic and vegetarian from a very young age (born in Larzac at the beautiful time) was in a lamentable state of health snacking on her seeds and vegetables drinking herbal teas. ..When I knew her she was 40 years old she looked easily 60 she was unable to carry more than 20kg she never could have had children ... She was struck down at 51 years old ...
You will always find special cases that seem to point out a path not to follow. But if you are going to visit hospitals with its multiple pathologies, you will only find vegetarians there exceptionally.
I have been VG for almost half a century, with my VG children and grandchildren too and I see that if the medics had to rely on "us" to make a living, they would quickly put the key under the mat. (I am only talking about which I can verify directly and not from distant testimonies).
From experience, I have many times verified that some LVs themselves had a deep ignorance of the subject and means promoting satisfactory health because the VG is not only to stop the bidoche.
It was not a good example for me to forget to eat steak ...
I therefore suggest that you contact organizations that bring together GBs and meet them directly in order to have a fresh look at the subject. Otherwise everyone remains free of what they consume with its advantages and disadvantages including cancers.