The Claim

In adults with obesity and abnormal glucose metabolism, a standardized low-fat diet results in a significantly greater reduction in resting energy expenditure over six months compared to a personalized glycemic-targeted diet, with a mean difference of 92.3 kcal/day (95% CI 0.9–183.8, P=0.05).

Source: Effect of a Personalized Diet to Reduce Postprandial Glycemic Response vs a Low-fat Diet on Weight Loss in Adults With Abnormal Glucose Metabolism and Obesity

What the research says

Supports is higher

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

Supports
70score
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.

Cause and effect
1 study reviewed
In plain English

Among adults with obesity and impaired glucose metabolism, a standardized low-fat diet causes a larger decrease in resting energy expenditure after six months than a personalized diet targeting blood sugar levels, with a measured difference of 92.3 kcal per day.

See the scientific wording

In adults with obesity and abnormal glucose metabolism, a standardized low-fat diet leads to a significantly greater reduction in resting energy expenditure over six months compared to a personalized glycemic-targeted diet (difference 92.3 kcal/day, 95% CI 0.9–183.8, P=0.05), suggesting that metabolic adaptation may differ between dietary approaches despite similar weight loss.

Why this might work

Eating a low-fat diet for months lowers the body's ability to burn calories at rest because it reduces the activity of fat-burning pathways in muscle and liver, and decreases the signals that tell the body to generate heat, even when weight loss is the same as with other diets.

Suggested mechanismbased on 1 study

What the research says

1 study
  1. Study: Effect of a Personalized Diet to Reduce Postprandial Glycemic Response vs a Low-fat Diet on Weight Loss in Adults With Abnormal Glucose Metabolism and Obesity

    People on a standard low-fat diet burned slightly fewer calories at rest after six months than those on a personalized diet, even though both lost similar amounts of weight. This suggests the low-fat diet may slow down metabolism more.

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

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