Night-shift lifestyle trial found limited changes beyond protein intake
A small crossover study reported differing visceral fat changes between timing groups, with no significant differences in quality of life or sleep.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
This small trial found increased protein intake and a difference in visceral fat changes between women starting the programme immediately and those starting later. Quality of life, measured sleep, and several metabolic outcomes did not show significant group-by-time differences. The findings suggest limited measurable changes, without demonstrating broad benefits for night-shift workers.
Only 11 participants completed the study. The abstract does not clearly explain the crossover comparison behind the visceral fat estimates, limiting confidence in their practical interpretation.
What researchers found
Mental and physical quality of life
Immediate versus delayed programme groups across the 8-week crossover periods; RAND SF-12 scores, with p > 0.05.
What the programme involved
Participants received daily text guidance and foods for use during shifts, with an emphasis on nutrition timing, protein, and rest. Because these elements were delivered together, the abstract cannot isolate the contribution of each one.
A body-composition signal needs context
Visceral fat percentage changed differently between the immediate and delayed groups. That finding concerns a body-composition measure; the study did not demonstrate corresponding improvements in quality of life, sleep, or the reported blood markers.
The original publication
A Randomized Controlled Crossover Lifestyle Intervention to Improve Metabolic and Mental Health in Female Healthcare Night-Shift Workers.
Robinson LA, Lennon S, Pegel AR et al.
Nutrients · 2025
- PubMed ID
- 41228416
- Record checked
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