Q: Can caffeine cause constipation?
A: Yes and no. In some situations caffeine can relieve constipation and other times it can cause constipation. Caffeine is a diuretic, which means it makes you urinate more than normal, which can cause dehydration and constipation. Since caffeine also speeds up digestion in your colon, it can relieve constipation. Bottom line: if you consume caffeine, make sure to drink plenty of water to prevent constipation.