Irritable bowel syndrome may present with predominance of either constipation, diarrhea, or both. For constipation dominant IBS, following dietary triggers are generally identified: - refined grains - bread - carbonated drinks and alcohol - processed food - diet rich in protein - dairy products Reference: https://www.webmd.com/ibs/ibs-triggers-prevention-strategies Image via: https://www.wickhosp.com/blog/tag/constipation/