The Claim

In overweight or obese adults with type 2 diabetes, a 24-week isocaloric low-fat diet with 32% protein and 33% carbohydrate, combined with 150 minutes of moderate exercise per week, is associated with greater improvements in HbA1c compared to a diet with 22% protein and 51% carbohydrate.

Source: A randomised trial comparing low-fat diets differing in carbohydrate and protein ratio, combined with regular moderate intensity exercise, on glycaemic control, cardiometabolic risk factors, food cravings, cognitive function and psychological wellbeing in adults with type 2 diabetes: Study protocol.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
62score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

In overweight or obese adults with type 2 diabetes, a diet higher in protein and lower in carbohydrates, combined with regular moderate exercise, leads to greater reductions in HbA1c levels over 24 weeks compared to a diet lower in protein and higher in carbohydrates.

See the scientific wording

In overweight or obese adults with type 2 diabetes, a 24-week isocaloric low-fat diet with 32% protein and 33% carbohydrate, combined with 150 minutes of moderate exercise per week, is associated with greater improvements in HbA1c compared to a diet with 22% protein and 51% carbohydrate, suggesting that higher protein intake may enhance glycemic control during weight loss and maintenance phases.

Why this might work

Eating more protein and fewer carbs causes the liver to release less sugar into the blood, while muscle and fat cells become better at taking up sugar when insulin is present. This lowers the average blood sugar level over time.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: A randomised trial comparing low-fat diets differing in carbohydrate and protein ratio, combined with regular moderate intensity exercise, on glycaemic control, cardiometabolic risk factors, food cravings, cognitive function and psychological wellbeing in adults with type 2 diabetes: Study protocol.

    This study is exactly testing whether eating more protein and fewer carbs, while exercising, lowers blood sugar better than eating more carbs and less protein in people with type 2 diabetes — which is what the claim says. It’s still underway, but it’s set up to find out if the claim is true.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

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