Kidney Bean Pod is included in many herbal teas, tea bags and other preparations intended for the promotion of kidney and bladder health. It is a weak diuretic and is traditionally used to support ailments of the urinary tract, gout and itchy skin. It has a long history of use as weak anti-diabetic.
Kidney Bean Pod Phaseolus vulgaris L.
Other Names: French bean; common bean; haricot (French); Gartenbohne (German); fagiolo (Italian).
Description: The common bean is a twining or bushy annual with trifoliolate leaves, small white or pink flowers and narrowly oblong, multi-seeded pods. The seeds are more or less kidney-shaped and variable in size, shape and colour, depending on the cultivar. Beans are grown as a vegetable (young pods) or as a pulse (ripe seeds).
Origin: Tropical America. Beans are now cultivated in all parts of the world and a multitude of cultivars and bean types have been developed.
Parts Used: The dried bean pods, without the seeds - Phaseoli pericarpium (Phaseoli fructus sine semine).
Therapeutic Category: Diuretic.
Preparation and Dosage: To prepare a tea, 2.5 - 5 g of the drug is added to 150 mL of boiling water and steeped for 10 - 15 minutes. One cup is taken two or three times per day. The daily dose is around 5 - 15 g. Many herbal teas and proprietary products have bean pods as an ingredient.
Active Ingredients: Bean pods are rich in amino acids (mainly asparagine, arginine, leucine, tyrosine, tryptophan and lysine) and trigonelline (= 1-methylnicotinic acid), an alkaloid also found in the seeds of Trigonella foenum-graecum, Coffea arabica and Cannabis sativa. Only silicic acid and arginine have so far been considered as possible active compounds that may explain the observed diuretic and claimed anti-diabetic activity. Recently, chromium salts - bean pods contain about 1 ppm - have been discussed in this context.
Pharmacological Effects: More research is needed to explain the diuretic and anti-diabetic effects.
Notes: Another member of the legume family that has medicinal properties is lupin (genus Lupinus). Several species from Europe (L. albus, L. luteus, L. angustifolios) and South America (L. mutabilis) are known as medicinal plants. Lupins contain lupanine and other quinolizidine alkaloids, saponins and isoflavonoids. They have been usedtraditionally to support skin disorders, ectoparasites and diabetes.
Status: Traditional medicine; Pharm.; Comm. E+.
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* These statements have not been evaluated by the Food and Drug Administration (FDA). Products are intended to support general well being and are not intended to treat, diagnose, mitigate, prevent, or cure any condition or disease. If conditions persist, please seek advice from your medical doctor. Information provided at ZooScape.com relies partly on Traditional Uses. The essence of the current American rule on Traditional Uses is, as stated by FTC, "Claims based on historical or traditional use should be substantiated by confirming scientific evidence, or should be presented in such a way that consumers understand that the sole basis for the claim is a history of use of the product for a particular purpose."