There is some growing thought that NAFLD is something of the body's silent scream it is struggling in metabolic terms.
Dr David Unwin, when reviewing patients under his care, realised the NAFLD can preced T2 by some years. In my opinion NAFLD should be seen as a distinct warning to the individual that something needs to change.
Good idea, but I have no way of knowing if I have NAFLD or not. So I do not detect this warning at all. Certainly my liver stats from blood tests have not shown anything. I do not have an MRI scanner in the garage.
Edit to add: I too do not wish to be a party pooper, since I recognise the Newcastle Diet (and the Blood Sugar Diet et al) as being valid for T2D to use to control their bgl. However, there have been several posters on this forum recently reporting that after a short period of remission, following ND or similar, then their bgl started to rise again. So I do not consider that to be a CURE, but is a class of remission. As
@Fleegle has been saying, I regard ND et al as another tool in the toolbox that we can use.
A calorie deficient diet such as ND is not IMO a lifestyle change since it is time limited and could lead to potential health issues if extended in the longer term. However, this is what the DIRECT study is aiming to resolve so we may get ND Mk II hitting the streets soon.
What ND has done is make a connection between adipose fat and ultra low calorie diet, and also between T2D insulin response changing in direct response to that said diet. This is a useful start in scientific terms and shows unequivocally that ND mimics Bariatric surgery, is cheaper to introduce, is something the average T2D in the surgery can do easily at home, and it can be prescribed by GP. The research is a coat of many tick boxes.
IMO [ND and such] are proper diets in that they are time limited, Low Carb on the other hand seems to be sustainable in the long term and is a lifestyle change - that is the difference as I see it. Both have their place, and in my view can be combined to good effect, along with intermittent fasting.
It must also be pointed out here that in the initial ND trials, there was a less than 50% success rate, so the diet is only a success for some, but not all (yet).