The Claim

A three-month ketogenic diet in adults with overweight is associated with a 6.3% reduction in HbA1c and a 6.5% reduction in fasting blood glucose.

Source: The impact of a ketogenic diet on weight loss, metabolism, body composition and quality of life

What the research says

Supports is higher

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

Supports
53score
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 adults with overweight, following a ketogenic diet for three months is associated with a 6.3% decrease in HbA1c and a 6.5% decrease in fasting blood glucose levels.

See the scientific wording

A three-month ketogenic diet in adults with overweight is associated with a 6.3% reduction in HbA1c and a 6.5% reduction in fasting blood glucose, suggesting improved glycemic control without medication.

Why this might work

When carbs are drastically reduced, the body stops releasing insulin, which tells fat cells to release stored fat. The liver turns that fat into ketones, which the brain and muscles use for energy instead of sugar. With less insulin, the liver stops making new sugar, and the body starts using up the sugar already in the blood. This lowers blood sugar and HbA1c without needing medication.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: The impact of a ketogenic diet on weight loss, metabolism, body composition and quality of life

    People who ate a low-carb, high-fat diet for three months had their average blood sugar levels drop by 6.3%, just like the claim said. They also lost belly fat and felt more energetic, with no bad side effects.

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

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.