Thank you,
I can see the bore but I have study a lot about food and nutrients, also about how human body works.
Even I was try (as an experiment) eat only fresh fruits and vegetables. nuts, seeds for about two month.
I don't know how it to say on English, It was "human-berrypecker" :) idea.
Yes I was have a lot of changes some positive, some not. I was lost about 15kg of my weight.

Anyway, quit from meat eating is good idea as temporary measure not as life style, it's true.
Long term no meat diet is a harmful in the end.
Our body can adapt to conditions over a wide range and it's can feel and seems like good from a side for survive.
But indeed it's not ideal feeding.

P.S. Sorry for my English it's hard for me for this time.