Research

Energy balance

Twice-per-week intermittent fasting (5:2 diet) is not superior to continuous energy restriction for weight loss or insulin resistance in night shift workers, though it may offer specific lipid benefits.

For night shift workers, a 5:2 intermittent fasting plan (eating ~500 kcal on 2 non-consecutive days) is just as effective for weight loss as eating slightly less every day. It does not offer superior metabolic benefits like insulin sensitivity, but it may help lower LDL cholesterol. Choose the method that fits your schedule best, as adherence is key.

GoodRefutesHIGH confidence
At 24 weeks, weight and HOMA-IR were not different between the modified IF groups compared with CER. ... the IF:2D group experienced reductions in total and LDL cholesterol.
Maxine P. Bonham et al. · EBioMedicine · 2025

Why this rating

High-quality RCT design, but sample size was reduced due to COVID-19, and the study was not powered to detect small differences.

Source

Intermittent fasting for weight loss in night shift workers: a three-arm, superiority randomised clinical trial

Maxine P. Bonham et al. · EBioMedicine · 2025

DOI 10.1016/j.ebiom.2025.105803

rct · n=250Cited 8×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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