In a recent study from German Institute of Human Nutrition and elsewhere, scientists found that high protein diets improve blood sugar control in people with type 2 diabetes without any adverse effects on kidney function.
Previous studies found both favourable and adverse impacts of high-protein diets in type 2 diabetes.
In the current study, researchers compared the effects of two high-protein diets with the same number of calories–one from animal protein and one from plant protein – on metabolic functioning and liver fat.
They tested 37 people with type 2 diabetes, who were assigned to receive either high-animal (meat and dairy foods) or high-plant protein diet for 6 weeks.
The researchers found that liver health was improved after diet intervention in both groups, and both liver fat and HbA1c were reduced in all people
The team also found insulin sensitivity was improved only in the animal protein group, while in the plant protein group there was a boost in kidney function.
Based on the findings, the researchers concluded that in people with diabetes, a 6-week high-protein diet leads to an improvement in blood sugar metabolism and decrease in liver fat independently from the protein source.
The high-protein diet has no adverse effects on kidney parameters, moreover the kidney function actually improved in the plant protein group.
The authors say that long-term studies with more participants are needed to confirm their findings.
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The study was conducted by Mariya Markova et al and published in Gastroenterology.
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