I am so glad we are having this conversation. I have used a similar way of eating twice in my life, with great results. I have also known people who had problems (physical) from similar diets. I am going to tell on myself, I am a small boned person and just under 5' tall. During Covid I...
That diet is a lot harder than it sounds. It works great, but you have to keep eating a diet pretty close to it for the rest of your life or you risk gaining it all back and then some. Drink lots of water, watch for kidney stones and constipation that can lead to bowel blockage...
We let our chickens roam the backyard all day, we have trees and bushes, as well as some small covered areas that the chickens can hid under. They enjoy their time in the "wild" and I think the eggs taste better.
Occasionally we do lose a chicken to a predator, most nights we put out traps...