CONCLUSION
This is the first study in the literature questioning bowel habits, physical activity, dietary fiber intake, and IBS all together in acne vulgaris patients. It is striking that coffee consumption is related with acne vulgaris. Although a significant relation between acne vulgaris and bowel habits or nutritional characteristics cannot be demonstrated, further large sample sized studies are needed on this subject, as there is strong evidence about brain–gut–skin axis existence.
There is no conflict interest.
There is no financial disclosure.
The data that support the findings of this study are available from the corresponding author
upon reasonable reques