The Study
Association of vitamin D and fiber intake with body fat percentage and visceral fat among female factory workers in Pontianak City
This study looked at whether girls who eat more vitamin D and fiber tend to have less body fat, but it didn't change anyone's diet to see what happened. So we can only say that in this group, people who ate more of these foods sometimes had less fat — but we don't know if eating more caused the change.
Analysis score
Maximum 44 for a cross-sectional study.
Where the score came from
This study looked at whether eating more fiber and getting more vitamin D is linked to less belly fat in women who work in factories.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 537 / 100
Quality score
Snapshots of a population at a single point in time, or descriptions of small groups. Can identify correlations and prevalence, but cannot determine cause and effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The links are weak but statistically significant — meaning they’re unlikely to be random, but the effect is small and doesn’t mean eating more will drastically change fat.
- 2Women who ate more fiber had slightly less body fat and less belly fat.
- 3Women who got more vitamin D had less belly fat, but not less total body fat.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
AcTion: Aceh Nutrition Journal
Year
2025
Authors
Akwilina Dwi Kristisanthy, Kusnandar Kusnandar, Isna Qadrijati
Related Content
Claims (4)
For every additional 10 grams of soluble fiber consumed per day, visceral fat accumulation decreases by 3.7%, regardless of changes in overall body weight.
In female factory workers in Pontianak, vitamin D intake is not linked to overall body fat but is linked to the amount of fat around internal organs, suggesting vitamin D's connection to fat is specific to where fat is stored, not how much total fat is present.
Among female factory workers in Pontianak, those who consume more vitamin D through their diet tend to have lower levels of visceral fat.
In female factory workers in Pontianak, those who consume more dietary fiber tend to have lower body fat and lower visceral fat, with the same strength of association for both measurements.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.