More than 480 million people worldwide are affected by type 2 diabetes.
In a study from the University of Southern Denmark, scientists found that a low-carbohydrate, high-fat, calorie unrestricted diet helped patients achieve better weight loss and glucose control over a 6-month intervention compared to a high-carb, low-fat diet.
The changes were not sustained 3 months after the intervention, suggesting a need for long-term dietary changes to maintain meaningful health benefits.
More than half of persons with diabetes also have nonalcoholic fatty liver disease (NAFLD), which can progress to cirrhosis and impair liver function.
Prior studies suggest that weight loss improves both diabetes control and NAFLD and restriction of carbohydrate intake improves the control of blood sugar levels.
In the study, researchers assigned 165 persons with type 2 diabetes to either a LCHF diet or a HCLF diet for 6 months.
Participants on the low-carb diet were asked to eat no more than 20% of their calories from carbohydrates but could have 50- 60% of their calories from fat and 20-30% from protein.
Patients on the low-fat diet were asked to eat about half of their calories in carbohydrates and the rest evenly split between fats and proteins.
The team found that persons on the low-carb diet reduced hemoglobin A1c by 0.59 percent more than the low-fat diet, and also lost 3.8 kg more weight compared to those in the low-fat group.
The low-carb dieters also lost more body fat and reduced their waist circumference. Both groups had higher high-density lipoprotein cholesterol and lower triglycerides at 6 months.
However, changes were not sustained 3 months after the intervention, suggesting that dietary changes need to be sustained over the long term to maintain effects.
The liver was not affected by the high fat intake in the low-carb group: The researchers found no difference on the amount of liver fat or inflammation between the two groups.
If you care about diabetes, please read studies that newly identified third type of diabetes is being wrongly diagnosed as type 2, and the diet linked to lower death risk in type 2 diabetes.
For more information about diabetes, please see recent studies about the cause of inflammation in type 2 diabetes, and results showing cruciferous vegetables may help reverse kidney damage in diabetes.
The study was conducted by Camilla Dalby Hansen et al and published in the Annals of Internal Medicine.
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