The Claim

A brief web-based and mobile intervention of intermittent fasting with meal support causes weight loss in adults with overweight and obesity in Japan.

What the research says

Supports is higher

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

Supports
80score
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
3 studies reviewed
In plain English

Adults with overweight or obesity in Japan who use a brief web and mobile program based on intermittent fasting and meal support lose weight.

See the scientific wording

A brief web-based and mobile intervention of intermittent fasting with meal support results in weight loss among adults with overweight and obesity in Japan.

Why this might work

When a person eats less on certain days, their body stops producing as much insulin. With less insulin, fat cells release stored fat into the blood to be used for energy. The body burns this fat instead of glucose, leading to weight loss over time.

Verified mechanismbased on 3 studies

What the research says

3 studies

  1. Study: A Brief Web-Based and Mobile Intervention of Intermittent Fasting With Meal Support for Weight Loss Among Adults With Overweight and Obesity in Japan: Pilot Randomized Controlled Trial

    In a small study, adults in Japan who used a phone app and got free low-calorie meals one day a week lost about 1.6 kg more than those who just got health tips. So yes, this kind of digital fasting program helped people lose weight.

  2. Study: The Effect of 4:3 Intermittent Fasting on Weight Loss at 12 Months

    People who followed a plan of eating very little on 3 days a week and eating normally on the other 4 days lost more weight than those who ate less every day — and they stuck with it better. This shows that intermittent fasting with support can help people lose weight.

  3. Study: Effects of 4:3 Intermittent Fasting on Eating Behaviors and Appetite Hormones: A Secondary Analysis of a 12-Month Behavioral Weight Loss Intervention

    People who followed a plan of eating normally for 4 days and cutting calories for 3 days lost weight, especially when they ate less out of emotion and thought more about their food choices. This shows that intermittent fasting with support can help people lose weight.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 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.