See: Improvements from carnivore, I've noticed.
I can't definitively say it's helping to heal ME/CFS, but that thought gives me hope. I read the book What must I do to get well? and how can I keep so? by one who has done it (Elma Fraser Stuart). The (1889) book says it takes about the same amount of time to reverse an illness.
I'm hoping I can speed up healing by correcting nutritional deficiencies with: Hyaluronic acid, omega 3 and liver or taking a quality multi-B vitamin containing: Niacin (B3 as pure Niacin (flush type)) and Thiamine (B1 as Benfotiamine or Allithiamine TTFD).