The Claim

In obese adults with type 2 diabetes on metformin, a 12-hour overnight fasting regimen combined with calorie restriction results in a 4.64% reduction in waist circumference after 12 weeks, which is significantly greater than the 2.70% reduction observed with calorie restriction alone.

Source: The impact of intermittent fasting during weight reduction in people living with type 2 diabetes mellitus: a randomized clinical trial

What the research says

Supports is higher

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

Supports
76score
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.

Quantitative
1 study reviewed
In plain English

Among obese adults with type 2 diabetes taking metformin, combining a 12-hour overnight fast with calorie restriction reduces waist size by 4.64% after 12 weeks, compared to a 2.70% reduction with calorie restriction alone.

See the scientific wording

In obese adults with type 2 diabetes on metformin, a 12-hour overnight fasting regimen combined with calorie restriction leads to a 4.64% reduction in waist circumference after 12 weeks, significantly greater than the 2.70% reduction observed with calorie restriction alone, indicating enhanced central fat loss.

Why this might work

When food intake is limited to a 12-hour window, the body switches to burning stored fat for energy after glucose runs out. This burns fat from around the organs in the belly more than other areas, and the liver makes less new fat, so belly fat decreases more than with just eating less food.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: The impact of intermittent fasting during weight reduction in people living with type 2 diabetes mellitus: a randomized clinical trial

    In a study, obese adults with type 2 diabetes who ate only during a 12-hour window each day and cut calories lost more belly fat than those who only cut calories — the difference was clear and statistically significant.

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.