Vitamin D is essential for the human body. Not only is it important for bone health, but the vitamin plays a key role in nerve cell communication and immune system functioning. According to a meta-analysis of all available research, studies that investigated vitamin D levels among people with IBS indicate that vitamin D deficiency is common across ethnicities (1). Another study, collected data from 37 IBS sufferers showing approximately 70% reported high-dose supplementation improved IBS symptoms (2).
- Williams C, Williams E, Corfe B. Vitamin D status in irritable bowel syndrome and the impact of supplementation on symptoms: what do we know and what do we need to know? European Journal of Clinical Nutrition. 2018. doi:10.1038/s41430-017-0064-z.
- Sprake EF, Frant VA, Corfe BM. Vitamin D3 as a novel treatment for irritable bowel syndrome: single case leads to critical analysis of patient-centered data. BMJ Case Rep. Vitamin D3 as a novel treatment for irritable bowel syndrome: single case leads to critical analysis of patient-centered data. 2012;2012. doi: 10.1136/bcr-2012-007223.