The Claim

Why do some studies say obese people have lower metabolism after eating?

Source: Thermic response to isoenergetic protein, carbohydrate or fat meals in lean and obese subjects.

What the research says

Supports is higher

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

Supports
37score
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.

Description
1 study reviewed
In plain English

Past studies that said obese people burn fewer calories after eating might have been misleading because they compared obese people with unusually active lean people or included diabetic patients who burn more calories at rest.

See the scientific wording

Conflicting findings in prior studies on reduced thermogenesis in obesity may stem from methodological differences, such as including diabetic subjects with elevated baseline metabolism or selecting lean controls with unusually high thermogenic capacity.

What the research says

1 study
  1. Study: Thermic response to isoenergetic protein, carbohydrate or fat meals in lean and obese subjects.

    This study found that obese and lean people burn the same amount of calories after eating the same meals, and it says past studies got mixed results because they used weird groups—like obese people with diabetes or super-metabolic lean people—so the differences weren’t real.

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.