well supported · human dataDiscovery of the day
In pooled trial data from people with type 2 diabetes, intermittent fasting lowered HbA1c, fasting glucose and body weight over the short term (under 3 months) compared with other diets, but performed no better in the long term and the metabolic benefits disappeared once the fasting stopped.
- Study design
- Meta-analysis
- Journal
- Nutr Res
- Evidence
- well supported
What it shows: A fair verdict on durability: results pooled from 12 trials with 966 people with type 2 diabetes, though the studies disagreed with each other a fair amount, so treat the exact effect sizes loosely. The long-term data showed no advantage over other diets, and the gains vanished after people stopped fasting.Meta-analysis · Nutr Res
The metabolic effects of intermittent fasting in patients with type 2 diabetes exist in the short term but disappear after its discontinuation: A systematic review and meta-analysis of randomized controlled trials. Nutr Res 2025Read the study →