What it is & primary uses
Cranberry products contain proanthocyanidins studied mainly for prevention of recurrent urinary tract infection.
Main benefits
- May reduce recurrent UTI risk in selected women and children.
- It does not treat an active UTI, and juices, extracts and PAC assays are not interchangeable.
Studied protocols
Research doses are grouped by outcome. They describe study designs—not a personal prescription.
36–72 mg/day PACs in standardized products
- Study duration
- Commonly 4–12 weeks; protocol and outcome vary
- Interpretation
- It does not treat an active UTI, and juices, extracts and PAC assays are not interchangeable.
04Food sources & equivalents＋
Can food provide a studied amount?
Cranberries and cranberry juice can provide related dietary exposure, but food and extract milligrams are not automatically interchangeable.
Dietary exposure; verify composition before comparing with a studied supplement dose
- How this was estimated
- Dose Radar compares the declared active ingredient with official composition data or the studied standardized extract—not with marketing names.
- Important limitation
- Natural content, preparation, bioavailability and formulation vary. This comparison does not prove equal physiological effect.
Food equivalents compare ingredient mass using published composition values. They do not prove equal absorption, formulation, physiological effect, safety or personal need.
Source: NCCIH cranberry evidence summary ↗05How to take it for absorption & tolerance＋
With water
Adequate fluid supports administration and tolerance; the product-specific directions still matter.
- Practical approach
- Daily with water. Keep the formulation and daily total consistent with the evidence context shown above.
- Watch for
- Warfarin interaction reports require caution
Meal guidance reflects human pharmacokinetic, clinical, official-label or evidence-review sources where available. A food pairing can change absorption or tolerability, but does not make a supplement necessary, effective or safe for every person.
Source: NCCIH cranberry evidence summary ↗06Supplement interaction check＋
An unlisted pair means no established pair-specific interaction was identified in this review—not proof that every dose, product or person is safe.
This is not proof that every dose, product or user context is safe. Medication and condition checks still apply.
07Research notes＋
Moderate evidence for the stated context. It does not treat an active UTI, and juices, extracts and PAC assays are not interchangeable.
The displayed amount comes from human research or an official evidence summary. It is not a personalized prescription, and formulation can change whether the comparison is valid.
08Scientific references＋
Peer-reviewed human research and formal evidence reviews. Open each source to inspect the complete paper record.
NCCIH cranberry evidence summary
Dose context: 36–72 mg/day PACs in standardized products
May reduce recurrent UTI risk in selected women and children. It does not treat an active UTI, and juices, extracts and PAC assays are not interchangeable.
Cranberry: live PubMed review search
Dose context: Ingredient-specific human literature; dose and formulation vary
This live index supports source verification. A new paper does not change the Dose Radar grade until its design, population and formulation are reviewed.
09Expert & media references＋
Podcast and practitioner statements are clearly separated from research. They may explain practice or emerging ideas, but do not prove efficacy.
Dose Radar will leave this lane empty rather than invent or infer a professional opinion.