Cranberries are small, tart fruits that have been a staple in North American diets for centuries and have attracted considerable scientific interest for their rich phytochemical profile, particularly proanthocyanidins (PACs) and other polyphenolic compounds. Research suggests that cranberry consumption may help support urinary tract health by interfering with the adhesion of certain bacteria to the urinary lining, and studies indicate that these same bioactive compounds contribute meaningful antioxidant activity in the body. Emerging research has also explored cranberries' potential role in promoting gut health by favorably influencing the gut microbiome, as well as supporting oral health by reducing bacterial adhesion in the mouth. Whether enjoyed as fresh berries or unsweetened juice, cranberries offer a nutrient-dense addition to a balanced diet that continues to be actively studied across multiple areas of wellness.
Compare this supplementResearch suggests that cranberry, particularly its polyphenols and fiber components, may support gut health through a...
View studies →Research suggests that cranberries may support urinary tract health primarily through the action of their unique A-ty...
View studies →These 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 | 500–1,500 mg | Daily | Urinary tract health and antioxidant support | Common in clinical trials using dried cranberry extract capsules |
| Extract | 36 mg | Daily | Urinary tract health, PAC (proanthocyanidin) standardized dose for UTI prevention | Based on RCTs using standardized PAC content |
| Juice | 240 ml | Twice daily | Dental and oral health, reduction of oral bacterial adhesion | Used in clinical studies on oral Streptococcus mutans inhibition |
| Juice | 240–300 ml | Daily | Urinary tract health, prevention of recurrent UTIs | Common in clinical trials for UTI prevention |
| Powder | 1–1.5 g | Twice daily | Gut health and antioxidant support | Used in RCTs examining gut microbiota and polyphenol effects |