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Bowel Movements Tied to Common Vitamin
23 Jan
Summary
- Vitamin B1 (thiamine) is linked to gut motility.
- Study analyzed genetic and health data of over 268,000 people.
- Higher vitamin B1 intake correlated with more frequent bowel movements.

New research indicates that vitamin B1, or thiamine, a common nutrient found in many foods, is linked to gut motility – the movement of food through the digestive system. An international team analyzed genetic and health data from over 268,000 participants of European and East Asian ancestry.
The study identified 21 genetic regions associated with bowel movement frequency. Notably, genes involved in thiamine metabolism showed a strong connection to stool frequency. This finding was further supported by an examination of UK Biobank data, which revealed that individuals with higher vitamin B1 consumption generally experienced more frequent bowel movements.
While these findings are significant, researchers acknowledge limitations, including the use of self-reported data and frequency as an indirect measure of motility. The study's results do not definitively prove causation, and individuals with digestive issues are advised to consult a healthcare professional for guidance.


