ANSWER: In some people, taking D-mannose can cause diarrhea. This is because D-mannose is a type of sugar, and like other sugars, it can have a laxative effect when consumed in large amounts.
If you experience diarrhea after taking D-mannose, it is likely because you are taking too much or your body is not able to tolerate it well. It is always important to follow the dosage recommendations on the product label and to talk to a healthcare provider if you have any concerns about taking D-mannose.
If you continue to experience diarrhea after taking D-mannose, it is a good idea to talk to your healthcare provider to discuss other treatment options.
