The Claim

High-protein intake at 1.6 g/kg/day during calorie restriction and resistance training reduces leptin levels in young women with overweight, and time-restricted eating does not further reduce leptin levels beyond the effect of high-protein intake.

Source: High-Protein Time-Restricted Eating Alongside Resistance Training Reduces Adipose Tissue While Preserving Fat-Free Mass in Women With Overweight: A Randomized Controlled Trial.

What the research says

Supports is higher

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

Supports
54score
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

In young women with overweight, consuming 1.6 grams of protein per kilogram of body weight per day during calorie restriction and resistance training lowers leptin levels. Adding time-restricted eating does not lower leptin levels any further.

See the scientific wording

High-protein intake (1.6 g/kg/day) during calorie restriction and resistance training significantly reduces leptin levels in young women with overweight, but time-restricted eating does not provide additional leptin-lowering effects beyond protein intake.

Why this might work

Eating more protein while cutting calories and lifting weights causes the body to burn fat for energy instead of storing it, which shrinks fat cells. Smaller fat cells produce less leptin, a hormone that signals fullness. At the same time, protein keeps muscle from breaking down, which helps maintain metabolism and prevents the body from slowing down fat loss.

Verified mechanismbased on 1 study

What the research says

1 study
  1. Study: High-Protein Time-Restricted Eating Alongside Resistance Training Reduces Adipose Tissue While Preserving Fat-Free Mass in Women With Overweight: A Randomized Controlled Trial.

    When overweight women ate more protein and lifted weights while cutting calories, their appetite hormone leptin went down. Adding a 10-hour eating window didn’t make leptin drop any further than protein alone.

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.