The Claim

In adults and older individuals, long-term isocaloric intermittent fasting leads to greater reductions in fat mass percentage, waist circumference, fasting insulin, and insulin resistance (HOMA‑IR) compared with calorie restriction, indicating potential metabolic health advantages over time.

Source: Is isocaloric intermittent fasting superior to calorie restriction? A systematic review and meta-analysis of RCTs.

What the research says

Supports is higher

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

Supports
33score
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

Skipping meals on a regular schedule, without cutting calories, seems to shrink belly fat and improve blood‑sugar markers more than just eating fewer calories.

See the scientific wording

In adults and older individuals, long-term isocaloric intermittent fasting results in greater reductions in fat mass percentage, waist circumference, fasting insulin, and insulin resistance (HOMA-IR) compared to calorie restriction, indicating potential advantages for metabolic health over time.

What the research says

1 study
  1. Study: Is isocaloric intermittent fasting superior to calorie restriction? A systematic review and meta-analysis of RCTs.

    The study looked at time-restricted eating versus cutting calories and found that, over time, time-restricted eating reduced body fat, waist size, and insulin levels more than calorie cutting, which supports the claim.

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.

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