Cranberry is an evergreen shrub that grows in wet habitats in the Northeastern and North Central parts of the United States. Historically, cranberry fruits or leaves were used for bladder, stomach, and liver disorders, as well as diabetes, wounds, and other conditions. Today, cranberry is most commonly promoted for urinary tract infections (UTIs).
Cranberries are high in nutrients and antioxidants. They can provide various health benefits when eaten as part of a balanced diet.
Benefits of Cranberry
- Managing UTIs
- Reducing the risk of cardiovascular disease
- Slowing cancer progression
- Enhancing oral health
Risks
People who use the blood-thinning drug warfarin (Jantoven) should discuss their intake of cranberries with their doctor. Cranberry products may also lead to higher excretion of oxalate in urine. This could promte the formation of kidney stones in those who are susceptible to calcium oxalate-type stones.
Individuals with a history of kidney stones should talk to their healthcare provider before increasing their intake of cranberries.
Special considerations
Cranberries are a natural food with potential health benefits, but it does not mean it is a good choice for everyone. Some evidence suggests it may not be good for everyone to eat. Some considerations a person should consider the following:
- Pregnancy: It is unclear and little is known about whether cranberries have a negative effect on pregnancy. It is best for a person to discuss their consumption with their attending doctor.
- UTIs: While cranberries may be good for a UTI infection, a person should get a formal diagnosis and follow recommended treatment plans from their doctor rather than trying to self-medicate with cranberries or their products.
- Blood-thinning medications: Conflicting evidence suggests that consuming cranberries may increase the blood-thinning effect of prescription medications.
- Nursing: It is unclear if consuming cranberries while nursing has an effect on the baby.
- Stomach issues: Evidence suggests that consuming a large number of cranberries or products that contain them can lead to upset stomach and diarrhea. This is particularly true in young children.
