My wife was diagnosed as pre diabetic with a blood glucose reading of 42mmol/mol using a HbA1c test.  We have been sugar free now since June last year and her last blood glucose reading was 36mmol/mol. She is no longer pre diabetic.  She has lost 14kg. I have lost 18kg and have a blood glucose reading of 33mmol/mol.  My cholesterol check gave a triglyceride reading of 1.4 mmol/mol.  All the reading I have done indicates that the fatty liver comes from the fructose - not the fat in your diet.  We have bacon and eggs on toast with butter every day where possible. I say go for it.