Cranberry and D-Mannose
Each entry’s own grades, side by side. A grade says how strong the evidence is for one outcome — it does not rank one entry over the other.
Compound or practice
Cranberry
Genuinely reduces recurrent UTIs via proanthocyanidins — prevention, not treatment.
Grade B2 graded outcomesrevised Jul 10, 2026
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
Compound or practice
D-Mannose
A simple sugar that helps flush UTI-causing E. coli — promising early data for prevention.
Grade C1 graded outcomerevised Jul 10, 2026
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
Graded in both
Outcomes are matched by name. Two entries can describe the same outcome in different words, so one listed further down may still be graded in the other.
| Outcome | Cranberry | D-Mannose |
|---|---|---|
| Recurrent UTI prevention | Evidence grade BModerate effectmixedIn susceptible groups | Evidence grade CModerate effectmixedSmall trials |
Graded only in Cranberry
- Active UTI treatment Trivial effectEvidence grade D
Graded only in D-Mannose
None — every outcome it grades is graded in both.
Conditions
- Recurrent urinary-tract infectionCranberry: May improveEvidence grade BD-Mannose: May improveEvidence grade C
Only in Cranberry
None.
Only in D-Mannose
None.
What each entry says about the other
- Cranberry’s entry · Works together: Both target E. coli adhesion — common UTI-prevention pairing.
- Cranberry’s entry · Goes with: Both target E. coli adhesion — common UTI-prevention pairing.
- D-Mannose’s entry · Works together: Complementary anti-adhesion — common pairing.
- D-Mannose’s entry · Goes with: Complementary anti-adhesion — common pairing.
Both columns are read from the entries as they stand in this library. A comparison is not advice to take either one, and it is no substitute for a clinician who knows the person.