The health benefits of the cranberry can be found in the fruit itself, as well as in the extracts and supplements made from it. Cranberries are mainly recommended, in some form, for adults who have frequent urinary tract infections (UTIs), a major cause of cystitis (painful inflammation of the urinary bladder). This is good for us to know, because about 25 percent of women have at least one UTI at some point in their life.

E. coli bacteria are the most common cause of such an infection, and when cranberries are consumed, they seem to keep the bacteria from clinging to the lining of the bladder and creating a problem. Cranberries are considered to be more effective if they are used along with other forms of treatment for this condition, usually antibiotics.

Anyone who does not have a chronic illness can still use moderate amounts of cranberry juice to prevent the development of UTIs, and 10 ounces of this liquid (or an equivalent) taken daily is often recommended as acceptable dose for this purpose.

Some studies have also found that cranberries can relieve blood disorders and help prevent stomach ulcers, cancer, high cholesterol, heart problems, arteriosclerosis, and gum disease. For this reason, they are considered to be one of America’s best 25 nutritional supplements. In part, this is because cranberries are high in flavonoids and antioxidants, both of which are essential to our good health.

Dosage

A dose of cranberries can vary greatly from one extract or supplement to another, and while consuming them in some form may have its benefits, we should also be keep in mind that many cranberry drinks sold in grocery stores contain a large amount of sugar. This tells us we need to be careful when deciding exactly which products to use.

Variations

Fortunately, cranberries are available in various forms such as concentrates, tinctures, and capsules. These are a better choice, because natural cranberry juice concentrate contains no added sugar, fillers, or preservatives, which should always be avoided. Still, you should also be aware that some tinctures contain high levels of alcohol and should not be taken during pregnancy.

Safety

While there are no known side effects related to using this natural remedy, people who tend to form kidney stones should always consult their health-care provider before using any cranberry product. During pregnancy and for nursing mothers, moderate doses are still considered safe. For the average person, consumption of large doses of cranberry in any form may cause diarrhea and nausea.

Interactions

For those taking taking the blood thinner warfarin (Coumadin), using any cranberry product may increase their risk of severe bleeding, perhaps even hemorrhage.

Caution

In all cases, the wise consumer will learn to read cranberry-product labels carefully and always discuss the amount to be taken with a health-care professional before starting such a regimen.

—Arlene Connolly