Research
Macro partitioning
High carbohydrate intake is associated with poor sleep quality, but this effect is likely driven by the source of carbohydrates (confectionary/noodles) rather than total carbohydrate amount.
Don't just count total carbs; look at where they come from. High intake of sweets and noodles is linked to poor sleep, even if total carbs are high. Focus on replacing refined carbs with vegetables and fish.
ModerateQualifiesMEDIUM confidence
Regarding macronutrients, high carbohydrate intake was significantly associated with poor sleep quality (p for trend 0.03)... participants with poor sleep quality in the category for the highest carbohydrate intake consumed more confectionary and less rice than the participants with good sleep quality in the same category
Why this rating
Observational data; the paper itself notes the need for further studies to confirm associations.
Source
Low Intake of Vegetables, High Intake of Confectionary, and Unhealthy Eating Habits are Associated with Poor Sleep Quality among Middle‐aged Female Japanese Workers
Ryoko Katagiri et al. · Journal of Occupational Health · 2014
DOI 10.1539/joh.14-0051-oa
cross_sectional · n=3129Cited 256×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Among middle-aged female workers, high consumption of confectionary and noodles, and low intake of vegetables and fish are significantly associated with poor sleep quality.Moderate
- Unhealthy eating habits, specifically consuming energy drinks, sugar-sweetened beverages, skipping breakfast, and eating irregularly, are significantly associated with poor sleep quality.Moderate
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