Mannose is a natural sugar found in apples, green beans, and tomatoes. It has been used to prevent urinary tract infections. Mannose can be taken as a pill or powder.
500 milligrams 3 to 4 times daily
What Research Shows
May Be Effective
Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.
It is likely safe to take mannose in small doses for a short time. Not enough studies have been done to say whether it is safe to take for a long period. It is also not known whether it is safe to take by women who are pregnant or breastfeeding.
Talk to your doctor about any supplements or therapy you would like to use. Some can interfere with treatment or make conditions worse.
A1. Altarac S, Papeš D. Use of D-mannose in prophylaxis of recurrent urinary tract infections (UTIs) in women. BJU Int. 2014;113(1):9-10.
A2. Kranjčec B, Papeš D, et al. D-mannose powder for prophylaxis of recurrent urinary tract infections in women: a randomized clinical trial. 2014;32(1):79-84.
Last reviewed March 2020 by EBSCO NAT Review Board Eric Hurwitz, DC
Last Updated: 6/29/2020
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at email@example.com. Our Health Library Support team will respond to your email request within 2 business days.
All rights reserved.