A nice presentation of a study of 99 participants over 6 months and their diabetes control, using a low carb (20% of diet) intervention.
HbA1c down by 1% in 3 months!
20% is a low carb diet, not a ketogenic diet, its 85g of carbs, or about 340 kcal from carbs per day.
I'm really impressed at the improvements in this cohort with a mild dietary intervention, promising work!
Of course the population here was quite motivated to adhere to the program, being diabetic and wanting better outcomes. There was no control other than food survey's here.