I actually never heard of this condition, however I just googled it and it seems like it is a chronic and perhaps autoimmune condition? So the same rules would apply where you need to detoxify, modulate the immune system, reduce acidity etc. I cant give general guidelines as ive never heard of this condition and dont want to suggest something that is wrong!
yes 100% need liver support. I would assume he would need to consume more protein? But again, I am not familiar with this condition so would advise working with a practitioner who is to ensure a healthy diet 🙂