D-mannose is a naturally occurring, simple sugar found in fruits like cranberries and pineapples that stops bacteria from sticking to body tissues. When you ingest D-mannose, it is quickly absorbed in the upper portion of the gastrointestinal tract, but very little of the sugar is actually metabolized. Because of this, D-mannose doesn’t affect blood sugar levels—which makes it safe for everyone, including diabetics.
Once D-mannose is absorbed, it is quickly filtered out of your system by the kidneys and then flushed out of the body in the urine. In the process, the sugar dislodges bacteria present in the kidneys, bladder, and urethra. A dose of one-half teaspoon (2 grams) taken every two to three hours usually resolves problems such as vaginal and bladder infections caused by E. coli in a few days, without the complications of antibiotics that can kill the body’s beneficial bacterial flora.
D-mannose is available as a powder and has also recently come out in capsule form. The powder form has a mild, sweet, inoffensive taste. It's available from Bio-Tech Pharmacal or from the Organic Pharmacy.