Menstrual cycle disorders 5X more likely in teens if less than 30 ng of Vitamin D

Created December 2018

The Relationship between Vitamin D Status and the Menstrual Cycle in Young Women: A Preliminary Study.

Nutrients. 2018 Nov 11;10(11). pii: E1729. doi: 10.3390/nu10111729.
<30 ng 30-80 ng
Long cycles 40 % 12 % ?
Oligomenorrhoea 27 % 6 %
Amenorrhoea 13 % 6 %
* Poor menstrual cycles 2X more likely if poor vitamin D levels - many studies * Irregular menstrual cycles associated with low vitamin D – March 2015 * ALL of the top 10 health problems of women are associated with low vitamin D * PMS: 1.5X more likely to have cramps, feel fatigued and anxious if low vitamin D – Sept 2018 * PMS in teens reduced 3X by 50,000 IU vitamin D weekly – Jan 2018 * Menstrual Pain (PMS) reduced by vitamin D – RCT 2012, 2014, 2016 --- 1. Women category starts with the following {include}

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BACKGROUND: The aim of this study was to evaluate serum vitamin D levels and to compare these with the menstrual cycle in young women with different body weights.

METHODS: Eighty-four students were recruited into the study of which 77 remained at the study's completion. Women were assigned to one of two subgroups, according to their 25-hydroxy vitamin D test level [25(OH)D] in which 60 women had low 25(OH)D levels (LD < 30 ng/mL) and 17 had normal levels (ND > 30 ng/mL ≤ 80 ng/mL).

RESULTS: In the LD group, 40% of participants reported having long cycles, 27% were classified as having oligomenorrhoea, and 13% as having amenorrhoea. In the ND group, only 12% reported menstrual cycle disorders, 6% had oligomenorrhoea, and 6% had amenorrhoea. Women who did not meet the recommended level of 30 ng/mL of 25(OH)D had almost five times the odds of having menstrual cycle disorders as women who were above the recommended vitamin D level.

CONCLUSION: A relationship was demonstrated between the frequency of menstrual disorders and low levels of vitamin D. Supplementation is necessary in women with low levels of vitamin D in order to compensate for this deficiency and to assess its effect in regulating menstrual disorders.

Tags: Women