Many of cranberry juice’s potential benefits come from antioxidants, but there are many other nutrients that provide benefits as well. Here are some of the potential health benefits of cranberry juice.
1. Cranberry juice can prevent urinary tract infections
About 50 percent of women experience a urinary tract infection (UTI) – a condition that occurs when E.coli Bacteria that normally live in the gut enter the urinary tract and multiply — at least once in a lifetime, Lyons says. A review and meta-analysis of studies of nearly 4,000 people susceptible to urinary tract infections suggests that compounds in cranberry juice called proanthocyanidins (the pigment that gives cranberries their red-purple color) may prevent E.coli prevents bacteria from settling in your urinary tract.
“We can just pass this E.coli in our urine, rather than settling in the walls of the urinary tract and causing an infection,” explains Lyons.
A meta-analysis of 18 studies found that drinking cranberry juice was associated with a 54 percent lower rate of urinary tract infections than a placebo drink.
Cranberry juice helps prevent infection and balance the vaginal microbiome, says Lyons. However, if you have an active infection, it’s best to see a doctor.
2. Cranberry juice can support heart health
The high antioxidant content in cranberry juice may help keep the heart healthy. A meta-analysis found that cranberry juice may help control systolic blood pressure (the pressure in the arteries when the heart beats) and improve high-density lipoprotein (HDL), or “good” cholesterol levels in adults.
Other studies show mixed results. For example, a study of adults with elevated blood pressure found only a slight decrease in blood pressure after they drank 500 milliliters (ml) of cranberry juice daily for eight weeks. Another review of 16 studies found that cranberries (consumed in various forms) had positive effects on heart health, but not enough to be considered statistically significant.
“Cranberries can be part of a healthy diet that promotes cardiovascular health, but I wouldn’t go all-in on cranberry juice if someone is particularly concerned about cardiovascular disease,” says Lyons.
3. Cranberry juice can prevent stomach ulcers
Cranberry’s proanthocyanidins can prevent stomach ulcers by stopping them H. pylori from embedding in the stomach walls and root absorption.
H. pylori are bacteria found in contaminated food and water that can damage the protective lining of the stomach or small intestine, leaving the tissue vulnerable to stomach acid. Over time, stomach acid eats through the stomach lining and creates an open wound (ulcer). “Cranberries can prevent the colonization and persistence of H. pylorisays Lyons.
A study of 522 adults with H. pylori Infections found that drinking 16 ounces of cranberry juice twice daily for eight weeks reduced infection rates by 20 percent compared to those in the placebo group.
4. Cranberry juice can improve gut health
Cranberry juice can promote gut health by increasing the number of beneficial gut bacteria in your digestive tract, which aids digestion and helps your body absorb nutrients.
Research shows that the polyphenols (plant compounds) in cranberries promote the growth of healthy gut bacteria in healthy young women after consuming cranberry juice for 21 days. It’s worth noting that the study was partially funded by a company that sells cranberry juice.
Another study found that participants who drank cranberry juice for six weeks experienced some improvement in their constipation thanks to an increase in beneficial gut bacteria and a reduction in inflammation.
5. Cranberry juice may slow the growth of cancer cells
Like other fruits, cranberries may reduce the risk of cancer, says Michelle Routhenstein, RD, CDCES, a preventive cardiology nutritionist and certified diabetes care and education specialist in New York City. The plant compounds are believed to combat oxidative damage, an imbalance between free radicals and antioxidants that contributes to accelerated aging and chronic diseases such as cancer.
Most studies currently focus on cranberry extracts – not juice. For example, one study found that cranberry extract slowed the growth of breast cancer cells. The authors of another review noted that cranberry extract may have protective properties that prevent oral cancer.
The research is still in its early stages, so cranberry juice cannot yet be considered a proven method for cancer prevention or treatment in humans, says Routhenstein.
3 thoughts on “5 Health Benefits of Cranberry Juice”
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