The cranberry grows on a plant that is native to North America and bears a red fruit in summer. Juices, baked goods, and other items are made with cranberries.
Cranberry juice cocktail contains 26% to 33% pure cranberry. In its pure form, the fruit can be extremely bitter. For that reason, cranberry juice is usually heavily sweated. The dried fruit is processed and added to pills and extracts.[1, 2, 3]
Uses
Cranberry was used by Native Americans as a remedy for kidney and bladder problems. English immigrants used the berry to treat stomach troubles, blood disorders, scurvy (lack of vitamin C), and loss of appetite. It also has a history of use for diabetes, wounds, and liver problems.[2] Currently, cranberry is most often used to prevent and treat urinary tract infections (UTIs).
Cranberries are also packed with antioxidants, including vitamin C. Antioxidants reduce the effect of free radicals in the body, which harm cells and DNA.[1]
In addition, the fruit is used to:
Still others use cranberry to treat:
- Chronic fatigue syndrome
- Pleurisy (swelling in the lining of the lung)
- Cancer
- Type 2 diabetes
Recommended dosage
In most cases, cranberry is safe for everyone, including children and pregnant women. The recommended dose, for helping to prevent UTIs in adults, is at least 3oz of pure cranberry juice per day, or 10oz of juice cocktail. Adults can also consume 1.5oz of frozen or fresh cranberries.[1]
Other dosage recommendations include:[3]
| Problem | Suggested solution |
|---|---|
| Urinary tract infection prevention (children) | 15ml/kg of 30% cranberry concentrate daily |
| Urine deodorizer (for incontinence) | 3oz to 6oz of cranberry juice daily |
| Type 2 diabetes | 6 cranberry capsules daily (or 300mg to 400mg twice daily) for 12 weeks |
Ask your doctor what dosage is best for you.
Does cranberry work
Urinary tract infection
Studies have shown that cranberry can help prevent UTIs. It helps keep bacteria from attaching to the urinary tract. It is especially useful for women who have frequent infections. However, it is not recommended for treatment of UTIs since it is less effective for clearing bacteria that has already become attached to the urinary tract.
Cranberry juice is recommended over pill form.[1, 4] Similarly, cranberry may help prevent stomach ulcers, but more research is needed.[1, 2] In addition, since cranberry juice has a lot of salicyclic acid (also in aspirin), it may help prevent blood clots and tumors, and decrease swelling.[3]
Other possible uses
Studies are being conducted regarding cranberry's effectiveness for the following:
- High cholesterol
- Cancer
- Alzheimer's disease
- Inflammation
- Viruses
- Anti-aging
Drug interactions
Cranberry may interact with some medications. Do not consume a lot of cranberry products if you are allergic to aspirin or take it on a regular basis, as it also contains salicyclic acid. If you take warfarin (Coumadin), ask your doctor before consuming cranberry because it might increase your risk of bleeding.
Don't take cranberry if you already have a urinary tract infection.
Before using cranberry products, you should consult your doctor about any medications you are taking to ensure they don't get broken down in the liver.[1, 3]
Side effects
Drinking a lot of cranberry juice could cause loose stools and stomach discomfort. Consider taking the pill form instead.[4]
Safety and considerations
- If you are pregnant or breastfeeding, ask your doctor about the safety of taking cranberry supplements.[1]
- The oxalate levels in cranberry may increase the risk of kidney stones. If you are high risk, avoid taking cranberry extracts. Limit cranberry juice as well.[1, 3]
- Don't consume cranberry if you already have a UTI. Call your doctor to discuss treatment options.[1, 2]
- Cranberry juice has a lot of sugar. If you have diabetes, look for sugar-free, light, or artificially sweetened versions of cranberry juice.[1]
Where to buy
Although we don't sell cranberry, you can compare different cranberry products here, including quality and price.
References
- University of Maryland Medical Center;" Reviewed 2011
- National Center for Complementary and Alternative Medicine; "Cranberry;" Updated 2012
- MedlinePlus; "Cranberry;" Reviewed 2012
- Denise Mann; HealthDay; "More Proof Cranberry Juice Thwarts Infection: Popular folk remedy holds up in analysis of 13 previous studies on urinary tract infections;" July 2012
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Cranberry Price Alerts
The following price alerts are still active:
- Oct 15, 2019Natrol Cranberry 120 Tablets dropped by 12.4% to $4.89 at AllStarHealth
- Oct 07, 2019Natural Factors Super Strength Cranberry Concentrate 90 Capsules dropped by 37.9% to $7.00 at AllStarHealth
- Aug 12, 2019Nature's Way Cranberry Extract 60 Tablets dropped by 8.3% to $5.49 at AllStarHealth
- Aug 09, 2019Nature's Way Cranberry Fruit 100 Capsules dropped by 7.6% to $7.29 at AllStarHealth
- Aug 01, 2019Nature's Plus Ultra Cranberry 1000 90 Tablets dropped by 11.4% to $25.19 at Best Price Nutrition
- Jul 12, 2019Natrol WellBelly for Women 30 Capsules dropped by 16.8% to $11.40 at iHerb.com
- Jun 11, 2019Enzymatic Therapy ActiFruit with Cran-Max 20 Items dropped by 6.5% to $5.79 at AllStarHealth
- Jun 04, 2019NOW Cranberry Caps 100 Capsules dropped by 11.6% to $7.64 at Best Price Nutrition
- May 06, 2019NOW Mannose Cranberry 90 Vcaps dropped by 11.0% to $14.59 at AllStarHealth
- Apr 04, 2019Solaray CranActin 60 Vcaps dropped by 8.6% to $9.29 at AllStarHealth
- Apr 03, 2019NOW Cranberry Concentrate 100 Capsules dropped by 8.3% to $7.99 at AllStarHealth
- Apr 03, 2019Nature's Way Cranberry Extract 120 Vcaps dropped by 10.1% to $9.79 at AllStarHealth
- Feb 11, 2019Nature's Bounty Cranberry 60 Softgels (only Fruit Concentrate 25,200mg with Vitamin C) dropped by 64.1% to $9.91 at eVitamins
- Nov 15, 2018Nature's Way Cranberry Fruit 100 Vcaps dropped by 13.9% to $8.64 at eVitamins
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