Figure 1

![Figure 1: Study selection and screening methodology for this systematic review on vitamin D supplementation in irritable bowel syndrome are depicted, following PRISMA guidelines.]()

> Source: Hangkai Huang et al. "The efficacy of vitamin D supplementation for irritable bowel syndrome: a system." *Nutrition journal*, 2022. PMID: [35509010](https://pubmed.ncbi.nlm.nih.gov/35509010/)

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  <img src="" alt="Study selection and screening methodology for this systematic review on vitamin D supplementation in irritable bowel syndrome are depicted, following PRISMA guidelines." />
  <figcaption>Figure 1. Study selection and screening methodology for this systematic review on vitamin D supplementation in irritable bowel syndrome are depicted, following PRISMA guidelines.<br>  Source: Hangkai Huang et al. "The efficacy of vitamin D supplementation for irritable bowel syndrome: a system." <em>Nutrition journal</em>, 2022. PMID: <a href="https://pubmed.ncbi.nlm.nih.gov/35509010/">35509010</a></figcaption>
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