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3Medicinal

Cranberry PACs

Also sold as Cranberry extract, proanthocyanidins

Prevention of recurrent urinary infections — not a treatment for active ones.

TrustedSupp Tier System™ · Tier 3Take as a defined course
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

Evidence strength

55/100Moderate
WEAKLIMITEDMODERATESTRONGVERY STRONG

What the evidence supports: reducing recurrence of urinary tract infections in women.

This scores how well-supported the claim above is — not how much benefit you personally would get. A high score on a narrow claim does not extend to everything the product is marketed for.

How long to take it

Ongoing for recurrence prevention.

Who it's actually for

Women with recurrent UTIs. Not a substitute for antibiotics in an active infection.

Safe upper limit

Unverified
No formal limit; 36 mg PACs daily is the studied dose
Well tolerated. High doses may raise oxalate and kidney stone risk.
No source or citation attached yet.

Interactions to know about

Run your full list through the interaction check.

Practical notes

  • An active UTI needs medical treatment — this is prevention only.
  • Look for a stated PAC content; juice rarely delivers a meaningful dose.
  • Can raise INR on warfarin.