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Registered dietitian Candace O’Neill, RD, LDN, talks about the benefits of cranberries and how to work them into your meals. Health benefits of cranberries There’s limited evidence that cranberries can potentially help improve someone’s lipid profile by raising their HDL (good) cholesterol,” notes O’Neill.
More specifically in relation to UTIs, and as it is becoming evident that the intestine is a reservoir for uropathogenic bacteria, in vitro studies have indicated that cranberry flavonoids and phenolic acids might interact with extra-intestinal E. coli (ExPEC) and decrease its (transient) intestinal colonization, consequently reducing the risk of UTI incidence [ 72]. This potential mechanism of action of cranberry polyphenols against UTIs is also depicted in Figure 2. We analysed the results of randomised controlled trials (RCTs), which compared the occurrence of UTIs in people taking a cranberry product with those taking a placebo or no treatment. We also analysed the results of RCTs comparing a cranberry product with other treatments such as antibiotics or probiotics. Caljouw MA, van den Hout WB, Putter H, Achterberg WP, Cools HJ, Gussekloo J. Effectiveness of cranberry capsules to prevent urinary tract infections in vulnerable older persons: a double-blind randomized placebo-controlled trial in long-term care facilities. J Am Geriatr Soc 2014;62(1):103-10. View abstract. As you’ve probably learned by now, a-type proanthocyanins are a powerful antioxidant. So researchers are starting to study if and how they may have anti-cancer properties.Digestive health benefits from cranberries are undeniable because of the fruit’s ability to balance bacteria in the body. This decreases harmful “bad” bacteria and facilitates the growth of beneficial bacteria. This not only relieves symptoms like constipation, diarrhea and stomach acid, but also helps boost immunity and nutrient absorption by fostering the health of the gut microbiome. 6. Reduce Risk of Heart Disease
Cho A, Eidelberg A, Butler DJ, et al. Efficacy of Daily Intake of Dried Cranberry 500 mg in Women with Overactive Bladder: A Randomized, Double-Blind, Placebo-Controlled Study. J Urol. 2020:101097JU0000000000001384. View abstract.
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McGuinness SD, Krone R, and Metz LM. A double blind randomized, placebo-controlled trial of cranberry supplements in multiple sclerosis. J NeurosciNurs 2002;34(1):4-7. Tempera, G., Corsello, S., Genovese, C., Caruso, F. E., and Nicolosi, D. Inhibitory activity of cranberry extract on the bacterial adhesiveness in the urine of women: an ex-vivo study. Int J Immunopathol.Pharmacol. 2010;23(2):611-618. View abstract. Coupled with their potent antioxidant and anti-inflammatory properties, cranberries may help lower the risk of some of the most common types of cancers. That’s why they are considered cancer-fighting foods. 4. Improve Immune Function In general, one serving of dried cranberries has around 25 grams of added sugar,” says O’Neill. “That’s actually how much added sugar some people can have in a day.”
Historically, Native Americans used cranberries to manage bleeding, promote digestive health and treat conditions like urinary tract infections. Cranberries were also a dietary staple and often used in spiritual ceremonies. They also were harvested for their bright colors and used to dye clothing. Benzoic Acid — It has powerful antiseptic properties. It is the main compound in cranberries that reduces the risk of infection and can kill bad bacteria to naturally treat urinary tract infections, bladder infections and even acne. Foo LY, Lu Y, Howell AB, Vorsa N. The structure of cranberry proanthocyanidins which inhibit adherence of uropathogenic P-fimbriated Escherichia coli in vitro. Phytochemistry 2000;54:173-81. View abstract. Howell, A. B., Botto, H., Combescure, C., Blanc-Potard, A. B., Gausa, L., Matsumoto, T., Tenke, P., Sotto, A., and Lavigne, J. P. Dosage effect on uropathogenic Escherichia coli anti-adhesion activity in urine following consumption of cranberry powder standardized for proanthocyanidin content: a multicentric randomized double blind study. BMC.Infect.Dis. 2010;10:94. View abstract. Zhang, L., Ma, J., Pan, K., Go, V. L., Chen, J., and You, W. C. Efficacy of cranberry juice on Helicobacter pylori infection: a double-blind, randomized placebo-controlled trial. Helicobacter. 2005;10(2):139-145. View abstract.Konowalchuk, J. and Speirs, J. I. Antiviral effect of commercial juices and beverages. Appl.Environ.Microbiol. 1978;35(6):1219-1220. View abstract. E. coli is a rod Gram-negative bacterium that colonizes the gastrointestinal tract of humans and animals after birth, forming part of the natural bowel microbiota. In addition, it can be an opportunistic pathogen that uses the intracellular environment to survive and protect itself against the action of antibiotics. Several epidemiological, serological, and bacteriological studies revealed that UPEC is the pathogen most frequently associated with UTIs [ 40], accounting for three-quarters of all UTIs among outpatients [ 41, 42]. These bacteria have evolved a multitude of virulence factors and strategies that facilitate bacterial growth and persistence within the adverse settings of the host urinary tract.