---
title: Does vitamin D or calcium level affect PMS symptoms and menstrual bleeding?
description: Calcium level is linked to heavier menstrual bleeding and irritability, but vitamin D level does not appear linked to PMS symptoms overall.
url: https://niyora.com/research/papers/menstrual-disorders-and-premenstrual-symptoms-in-adolescents-prevalence-and-2018/
---

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- Does vitamin D or calcium level affect PMS symptoms and menstrual bleeding?

Survey study, 2018

# Does vitamin D or calcium level affect PMS symptoms and menstrual bleeding?

Calcium level is linked to heavier menstrual bleeding and irritability, but vitamin D level does not appear linked to PMS symptoms overall.

 Moderate study design

897 high school girls from northeastern Iran

## What they did

Cross-sectional study of 897 high school girls from northeastern Iran. Researchers measured serum vitamin D and calcium levels and compared these to PMS symptoms and menstrual bleeding patterns using questionnaires.

## What they found

59.8% had normal calcium, 27.1% had low calcium, and 13.1% had high calcium. Menstrual flow differed significantly between the three calcium groups. An association was found between calcium, menstrual blood loss, and irritability. No significant association was found between vitamin D levels and PMS symptoms overall.

## What it means for you

Calcium may play a role in menstrual bleeding and irritability, but this study did not find vitamin D linked to PMS. More research is needed on whether calcium supplementation helps PMS. Large sample but observational only.

59.8%

Girls with normal calcium level

27.1%

Girls with low calcium

13.1%

Girls with high calcium

## About the study

Original title Menstrual disorders and premenstrual symptoms in adolescents: prevalence and relationship to serum calcium and vitamin D concentrations Authors Bahrami A, Bahrami-Taghanaki H, Afkhamizadeh M et al. Journal Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology Year 2018 Study design Survey study Participants 897 What was tested None (observational study) Read the paper [doi.org/10.1080/01443615.2018.1434764](https://doi.org/10.1080/01443615.2018.1434764)

## Topics

[Premenstrual syndrome (PMS)](https://niyora.com/research/topics/condition-pms/)[Irritability and anger](https://niyora.com/research/topics/symptom-irritability-anger/)[Cognition, concentration and memory](https://niyora.com/research/topics/symptom-cognition/)[Calcium](https://niyora.com/research/topics/treatment-calcium/)[Vitamin D](https://niyora.com/research/topics/treatment-vitamin-d/)[Relationships and partners](https://niyora.com/research/topics/life-area-relationships/)[Adolescents and young people](https://niyora.com/research/topics/life-area-adolescents/)

Research tells you what helps on average. Niyora helps on the day it hits.

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