The Claim

In overweight adults, a two-week isocaloric diet lower in glycemic index and saturated fat does not significantly alter whole-body fat oxidation during sleep or postprandially, suggesting that increased fat oxidation is unlikely to be the mechanism underlying the observed reduction in liver fat.

Source: Replacing Foods with a High-Glycemic Index and High in Saturated Fat by Alternatives with a Low Glycemic Index and Low Saturated Fat Reduces Hepatic Fat, Even in Isocaloric and Macronutrient Matched Conditions

What the research says

Supports is higher

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

Supports
73score
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.

How it works
1 study reviewed
In plain English

Eating a healthier diet for two weeks doesn’t make your body burn more fat while you sleep or after meals — so if people lose liver fat on this diet, it’s probably not because they’re burning more fat overall.

See the scientific wording

A two-week isocaloric diet lower in glycemic index and saturated fat does not significantly change whole-body fat oxidation during sleep or after meals in overweight adults, indicating that increased fat burning is unlikely to explain the observed reduction in liver fat.

What the research says

1 study

  1. Study: Replacing Foods with a High-Glycemic Index and High in Saturated Fat by Alternatives with a Low Glycemic Index and Low Saturated Fat Reduces Hepatic Fat, Even in Isocaloric and Macronutrient Matched Conditions

    The study found that people burned fat at the same rate on both diets, even though the healthier diet reduced liver fat. This means the lower liver fat wasn’t due to burning more fat.

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.