One nice experiment showed the big difference biota make may be choline absorption. https://medium.com/@russjj/choline-is-it-the-key-to-modern-illnesses-5da8f83

One nice experiment showed the big difference biota make may be choline absorption. https://medium.com/@russjj/choline-is-it-the-key-to-modern-illnesses-5da8f831a04b https://medium.com/@russjj/choline-is-it-the-key-to-modern-i...