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NOW Foods D-Mannose

120 capsules
NOW Foods D-Mannose

D-Mannose is one of the simple sugars naturally found in cranberries and pineapples known for its ability to protect and nourish the urinary tract. The body metabolises small amounts of D-mannose, but upon excretion much of it passes through the kidney and bladder. In the urinary tract, D-mannose adheres to microorganisms to prevent them from sticking to the bladder walls.

Supplement Facts

Serving Size: 3 Capsules
Servings Per Container: 40


Amount Per Serving

% Daily Value


1.5 g (1,500mg)


† Daily Value not established.

Other Ingredients: Cellulose (capsule), stearic acid (vegetable source), magnesium stearate (vegetavle source), silica and rice flour.

Suggested Use

Take 3 capsules 1 to 3 times daily. Take with water or unsweetened juice, such as unsweetened cranberry juice.


For adults only. Consult Doctor if pregnant/ nursing, taking medication, or if you have a medical condition.



D-Mannose naturally nourishes and protects the urinary system from undesirable foreign microorganisms. This simple sugar has the ability to facilitate excretion of harmful microorganisms in the urine. With these mechanism toxins and bacteria which is usually the causative agent of different infections affecting the urinary tract. Women, because of their shorter urethra are prone to invasion of these microorganisms and will greatly benefit from the bacteria flushing activities of D-mannose. D-Mannose supplements are also good for people who want to maintain healthy functioning of the kidneys, bladder, and the entire urinary system.

D-mannose is a six carbon glyconutrient also sold as carubinose or seminose. This food is naturally found in different shrubs. D-mannose is a monosaccharide that is naturally found in cranberries and pineapples, and in the glycolproteins of different plants and fungi. Of all dietary sources, cranberry provides the most considerable D-mannose content and is also the source of the nutritional values of cranberry juice and other cranberry supplements. However, the purpose of D-mannose to eliminate bacteria in the urinary tract is somehow compromised because of the acidity of the juice, since acidic conditions fosters bacterial growth. So how does D mannose work as an effective urinary tract supplement? D-mannose actively prevents bacteria like to adhere into the bladder walls. In most cases, bacteria that cause different urinary tract infections attaches themselves to the host tissue using their tiny hair-like structures called fimbrium. In the tips of the fimbrium are protrusions called lectins. These lectins are the ones that bind to the sugars like D-mannose present in the linings of the urinary tract and thereby, the infection process begins. When you take D-mannose supplements, there are more D-mannose to act as sacrificial guards to where the lectins attach themselves and goes together with the excretion of urine. Through this mechanism, D-mannose is able to block the E.coli bacteria. Now Foods D-mannose contains D-mannose in its purest form, derived from the isomeration of glucose from white potatoes, sweet potatoes, and non-GM corn.