D-Mannose is a naturally occurring simple sugar closely related to glucose, found in small amounts in fruits like cranberries and peaches. Although technically not an herbal supplement, it is widely available as a powder or capsule and has gained popularity for its potential role in supporting urinary tract health. Research suggests that D-mannose may help prevent certain bacteria, particularly E. coli, from adhering to the walls of the urinary tract, which is the mechanism behind most common urinary tract infections. Studies indicate promising results for its use as a supportive measure in maintaining urinary comfort, with some clinical trials comparing its preventive potential favorably to certain conventional approaches. As with any supplement, consulting a healthcare provider is a sensible step for anyone considering D-mannose as part of their wellness routine.
Compare this supplementThese are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 500–1,000 mg | Twice daily | Prevention of recurrent urinary tract infections | Common capsule dosing range used in clinical studies and systematic reviews |
| Powder | 1.5–2 g | Three times daily | Acute urinary tract infection treatment | Higher frequency dosing studied for acute UTI management in clinical trials |
| Powder | 2 g | Daily | Long-term maintenance for UTI prophylaxis | Maintenance dosing referenced in Kranjčec et al. (2014) six-month prophylaxis trial |
| Powder | 2 g | Twice daily | Prevention of recurrent urinary tract infections | Used in RCTs including Kranjčec et al. (2014) for UTI prevention |