Three herbs that detoxify your kidneys

 As the spring is coming with boom and bloom, I thought it might be a good idea to write a little bit about three herbs that support kidney filtration. Spring cleaning of our organism is crucial especially after an arduous winter period.

 

Some time ago I posted a nice and tested list of herbal ingredients for kidney cleanse.

Here it is:

Folium Plantaginis 1

Fructus Juniperi 1

Radix Bardanae 1

Flos Callunae 1

Herba Polygoni 1

Herba Hyperici 2

Herba Cichorii 2

Pericarpium Phaseoli 2

Herba Herniariae 2

Folium Vitis idae 3

Radix Urticae 4

Zea Maydis Stigma 4

Rhizoma Agropyri 4

Herba Equiseti 5

Radix Ononidis 3

Radix Asperullae 3

Folium Urticae 5

Folium Uvae Ursi 4

Radix Levistic 4

Radix Petroselini 4

Folium Betulae 5

Herba Solidaginis 5

Today I would like to show three herbs from this list that are probably the most important on this list. Namely: Birch leaves, Parsley, and last but not least Plantain.

The volatile oil found in parsley contains apiole, which accounts for most of the plant’s therapeutic effects. Apiole has been shown to produce calming actions on the nervous system, notably in the gastrointestinal tract. It also stimulates the urinary system and kidneys, functioning as a tonic and promoting diuresis. Parsley provides a natural source of Vitamin C and may help support a weakened immune response.

Therapeutic applications of parsley are mainly related to the urinary tract and kidneys. It works as an effective diuretic, promoting the removal of excess fluid and toxic heat from the body. The stimulating action of apiole also suggests usefulness in conditions such as renal calculi and jaundice, where restricted blood or bile flow contributes to inflammation in the urinary system.

Parsley can stimulate delayed menstruation and enhance lactation; however, because it strongly stimulates the uterus, it is contraindicated in early pregnancy.

Parsley soothes an overactive digestive system, acting as an antispasmodic and easing symptoms like flatulence, colic, and intestinal spasms.

Urinary and kidney Recommended for toxic heat and inflammation located in the urinary tract and kidneys, and for issues such as kidney stones, jaundice, and fluid retention.

Digestive Used when there is pain and cramping of the digestive muscles, alleviating nervous indigestion, gas, and colic.

Female reproductive Parsley stimulates the uterus and may encourage delayed or absent menstruation. It also serves as an emmenagogue and can support milk production during breastfeeding.

Herbal actions refer to the therapeutic effects that occur in the body after taking a plant. These terms describe how a plant physiologically affects cells, tissues, organs, or systems. Clinical experience has traditionally defined these actions: increased urine output is described as diuretic; enhanced wound repair, vulnerary; or fever reduction, antipyretic. These labels also help categorize herbs by their effects — herbs with calming effects on the nervous system are called nervines; those with a bitter quality are called bitters. Classifying herbs into these groups gives an initial sense of their mechanisms, from which one can explore their affinities, subtleties, and clinical relevance.

Herbal energetics are characterizations herbalists have applied to plants, fungi, lichens, foods, and some minerals based on direct experience of how they taste, feel, and act in the body. Traditional health systems use these concepts to explain how the environment we live in and take into ourselves influences health.

The essential oil in parsley is photo-sensitising and may increase sensitivity to sunlight if consumed in large amounts. Use caution with diuretics, lithium, and warfarin. Serum concentrations of some medications may rise because the herb inhibits multiple hepatic cytochrome enzymes. Tincture: 1–2 mL three times daily (1:5, 40%).

Dried: 1–2 teaspoons of dried herb per cup of boiling water.

External uses: Apply as a poultice or fomentation for conjunctivitis, mastitis, engorged breasts, bruises, sprains, insect bites, and stings. Use as a lotion for skin conditions including acne and eczema.

Birch occupies a distinctive place in myth, local folk traditions, and dendrological study. The refined form of the whole tree, the smooth feel of its foliage, and the silvery-white bark of a young Betula alba create an impression of calming, cleansing, and cooling effects. Taste sensations vary slightly between preparations: tea presents a mild astringency without marked bitterness, the sweeter sap is gently pleasant, and the tincture is distinctly bitter with a subtle spiciness finishing in astringency. Leaf juice carries a sharp, sour note followed by a cooling aftertaste. Fragrance also differs: the tea’s aroma is relatively faint, while the leaf juice emits a strong, sour astringent scent.

Therapeutically, birch has been used for urinary infections and inflammation of the urinary tract. Its diuretic properties assist elimination of uric acid, making it helpful for individuals with gout. The herb is frequently recommended for arthritic conditions because it can relieve rheumatic and arthritic pain and reduce swelling. Fibromyalgia may also respond favorably to birch-containing prescriptions, with reported easing of both myalgia and neuralgia.

As a promoter of detoxification, birch helps mobilize retained metabolic wastes and can improve cellulitis. Birch buds may be administered to reduce swollen lymph nodes, while the bark is regarded as more active on the liver, stimulating bile flow and alleviating constipation.

Birch’s diuretic, diaphoretic, and anti-inflammatory properties are valuable in treating skin disorders such as eczema and psoriasis. Topical applications can speed wound and sore healing. With stimulant actions that support hair growth, birch is included in remedies for alopecia.

The bright, clean appearance of young silver bark aptly suggests the tree’s cleansing qualities. Yet the darker markings that often develop into diamond-shaped patterns over time hint at a more complex range of effects. This complexity is reflected in the different uses and properties of the sap, resinous buds, elegant triangular toothed young leaves, fine twigs, and inner bark. Birch demonstrates adaptability, frequently establishing itself quickly as a pioneer species in difficult environments. Betula alba is associated with youth and spring harvests but typically has a limited lifespan of about 80–100 years. Betula lenta can live roughly twice as long.

Birch is commonly considered cooling, particularly when leaves are used for cooling eruptive and inflammatory states. In contrast, catkins and bark are often described as having warming qualities. The bark of Betula lenta is distilled to produce wintergreen essential oil, noted for anti-inflammatory effects especially for joint pain, muscle aches, and inflammatory skin disorders. The oil also exhibits strong antimicrobial activity and may assist in treating infections.

Traditionally, the sap has been emphasized for urinary ailments including stones, gravel, and dropsy. Sap was tapped in February or early March, and traditional herbals provide exact methods for tapping and preserving it—such as floating olive oil on the surface. Sap from branches was often preferred over trunk sap; by the nineteenth century this was refined to collecting from branches no thicker than three inches. Sap wine has long been valued: sugar, honey, or raisins were added, the liquor boiled, allowed to cool slightly, and then yeast introduced.

In the 17th and 18th centuries, both leaf juice and sap were recommended to dissolve kidney and bladder stones. Sap was also advocated for scurvy and jaundice, and was noted to produce laxative effects in large doses. Distilled sap was specifically prized for dissolving renal and bladder stones. Enthusiasm for its diuretic cleansing effect extended to uses for dropsy, the itch (applied internally and externally), gravel, hematuria, and urinary retention. Leaves and bark were decocted into washes to cleanse skin eruptions.

While traditional British use strongly emphasizes urinary and skin applications, broader uses of birch for rheumatism, arthritis, and gout seem to have been adopted from Eastern Europe in the twentieth century. Alma Hutchens records Russian practice of steam baths where leaves were placed over hot stones to harness cleansing moist vapors, followed by being beaten with birch twigs. Birch buds were macerated in vodka for treating colds, liver and gallstones, and rheumatism. Various birch species were employed by Native American groups, and Canadian First Nations used black birch twigs, sap, and inner bark. In the nineteenth century it was recorded for use against colds, scrofula, and sores.

Herbal actions describe physiological responses to herbs and are used to express how a plant affects cells, tissues, organs, or systems. Clinical observation has traditionally defined these actions: increased urine output is termed diuretic; enhanced wound healing, vulnerary; lowered fever, antipyretic. These terms have also been used to categorize herbs by their predominant effects—nervines for nervous-system actions, bitters for bitter-tasting herbs, and so on. Identifying herbs within these groups provides an initial framework for understanding their affinities and nuances and for assessing their clinical relevance.

The circulatory system 

Birch has lipid-lowering and antioxidant activities that are believed to reduce elevated cholesterol .

Digestive system

 By stimulating bile flow and dissolving deposits, birch relieves hepatic congestion and constipation. This improves chronic skin conditions and, combined with diuresis, contributes to systemic detoxification.

Musculoskeletal system

 Salicylates present in birch provide short-term analgesia and, together with diuretic and digestive-stimulating effects, contribute to cleansing. Beyond removing excess fluid, birch is thought to clear accumulated metabolic wastes, supporting its use in rheumatic disorders. Birch aids in uric acid elimination and is commonly included in herbal treatment plans for osteoarthritis.

Urinary system Infusions of birch leaf extracts have been demonstrated to act as diuretics, increasing urine output and electrolyte excretion. Aqueous leaf extracts were more effective than alcoholic preparations. Additionally, birch exhibits urinary antiseptic activity .

Skin and hair 

Birch’s depurative, anti-inflammatory, antimicrobial, and antiparasitic properties have long supported its use for skin conditions from eczema and psoriasis to scabies. Dandruff and alopecia have also improved with birch treatments, which promote and strengthen hair growth . Recent research has examined the role of betulinic acid in supporting therapies for cancers including breast, bladder, and gastric cancers.

Although clinical studies on birch are limited, a review of its uses is provided below. Leaves of Betula pendula, B. pubescens, and B. verrucosa receive a positive assessment in the Commission E monograph for treatment of bacterial and inflammatory diseases of the efferent urinary passages, renal gravel, and rheumatic complaints.

Medicinal plants of the genus Betula—traditional uses and a phytochemical-pharmacological review A comprehensive review examined traditional uses and phytochemical-pharmacological aspects across medicinal Betula species. Rastogi, Pandey, and Rawat documented seven Betula species with traditional applications. Several were identified as potentially useful in degenerative joint disease. Antiarthritic and anticancer properties are the primary focus of research on these species, with convincing evidence from experimental animal models supporting anticarcinogenic effects. The authors concluded that further investigation into biochemical and physiological mechanisms, bioavailability, pharmacokinetics, and pharmacodynamics of active extracts is warranted .

An aqueous birch leaf extract of Betula pendula inhibits the growth and cell division of inflammatory lymphocytes An in vitro investigation assessed birch leaf extract for its traditional application in rheumatoid and osteoarthritis (RA and OA). Activated lymphocytes are central to RA onset and maintenance. Aqueous leaf extracts of Betula pendula were applied to human primary lymphocytes to test whether they would inhibit proliferation of inflammatory lymphocytes. Results indicated dose-dependent inhibition of growth and division of activated, but not resting, T lymphocytes. The study concluded that Betula pendula leaf extract has a rational basis for treating immune-mediated disorders such as RA by reducing proliferating inflammatory lymphocytes .

Betulinic acid restricts human bladder cancer cell proliferation in vitro by inducing caspase-dependent cell death and cell cycle arrest, and decreasing metastatic potential Betulinic acid from birch bark has demonstrated antitumor effects across several cancer models. This in vitro study explored the mechanisms underlying its antiproliferative action in human bladder cancer cell lines. Betulinic acid was dissolved in dimethyl sulfoxide (DMSO) at 10 mg/mL and applied to bladder cancer lines at 5–30 μg/mL for 24–72 hours. Observations included decreased expression of cell cycle regulators and loss of mitochondrial membrane potential. The authors concluded that betulinic acid suppresses bladder cancer cell proliferation by inducing apoptosis and necrosis, causing cell cycle arrest, and reducing migration and invasion.

Treatment of actinic keratoses with birch bark extract: A pilot study Huyke and colleagues conducted a pilot trial of birch bark extract for actinic keratoses. Twenty-eight patients participated in a controlled protocol using either birch bark ointment alone or combined with cryotherapy for half the cohort. The bark contains betulinic acid, betulin, oleanolic acid, and lupeol—compounds known to induce apoptosis and possess anti-inflammatory activity. More than 75% of lesions cleared in 79% of patients treated solely with birch bark ointment; the combined therapy yielded a 93% success rate. The investigators concluded that standardized birch bark ointment was effective and free of side effects.

From a traditional medicinal plant to a rational drug: Understanding the clinically proven wound healing efficacy of birch bark extract A preclinical program combining in vitro and ex vivo methods examined the traditional wound-healing use of birch bark to elucidate molecular mechanisms. Bark preparations—either as a 10% triterpene extract in sunflower oil or dissolved in phosphate-buffered saline (PBS) at 1–10 μg/mL—were applied for 24–48 hours. The triterpene extract and betulin transiently upregulated several proinflammatory mediators, including cytokines, chemokines, and cyclooxygenase-2 at gene and protein levels, and enhanced keratinocyte migration, a key element of the proliferative phase of wound healing. The study concluded that these findings, together with established clinical efficacy, identify birch bark as having significant potential to improve wound healing.

Greater plantain and ribwort plantain are modest, well-known weeds long employed as traditional remedies for wound care. Used both orally and externally, they remain important in contemporary herbal practice for treating a range of conditions by supporting the health of mucous membranes and the skin.

Both plants are nearly odorless. Freshly dried, they have a mildly mucilaginous, sweet flavor that, with further chewing, shifts toward astringency with bitter notes.

Greater plantain is typically regarded as the better choice for external applications, while ribwort is especially effective within the lung tissues.

Each species may be applied for their healing, anti-inflammatory, and antimicrobial effects in mild cases of bronchitis, cystitis, sinusitis, allergic rhinitis, catarrh, ear infections, or gastric inflammation.

Ribwort can also aid recovery after acute pulmonary infections by helping the respiratory tract to mend. The leaves’ tannin content makes a strong tea useful for treating diarrhoea.

Often nicknamed the “green sticking plaster,” greater plantain is applied topically in various preparations with good effect for insect bites, wounds, sunburn, stings, ulcers, rashes, and haemorrhoids.

A quick field first-aid technique is to pluck a couple of leaves and chew them into a “spit poultice.” Saliva mixes with the leaf mucilage to form a gel that helps the leaf adhere to the injury, acting as a natural bandage. Be certain of correct identification of the plantains before attempting this!

When preparing an eye wash, always use sterilized tools and strain the infusion through a double layer of muslin or an unbleached paper coffee filter.

For a painful nettle sting, it is generally better to use a mashed leaf or two of either plantain rather than a dock leaf.

Iridoid glycosides, mucilages, and tannins are among the principal constituents responsible for the medicinal effects of both plants, which have been valued remedies for many centuries.

There are many administration methods for this useful pair, including infusions, syrups, gargles, salves, compresses, liniments, enemas, suppositories, douches, and irrigations for the eyes, ears, and nose.

Encouraging research on greater plantain’s healing and styptic (bleeding-stopping) properties indicates potential applications in broader care for pressure ulcers, diabetic foot ulcers, and even postpartum haemorrhage.

Records of greater plantain’s use in wound care extend back to Dioscorides.

Medicinal plantains, including greater plantain and ribwort, continue to be used worldwide today for a broad array of indications.

Although greater plantain was introduced to North America, Native American peoples adopted it as an effective wound healer and called it “White man’s footprint,” referring to the plant’s broad leaves and its spread following European settlement.

While both species promote tissue repair, greater plantain has often been employed specifically to quickly staunch bleeding from external injuries.

Ribwort and greater plantain have long been used interchangeably for conditions such as toothache, earache, oral ulcers, gum disease, tonsillitis, and internally for lung infections and inflammation.

Traditionally they have been used in the digestive system for internal bleeding, ulceration, and haemorrhoids, and in the urinary system for retention, hematuria, and bladder or kidney pain.

Both species were prized as drawing agents to help prevent festering wounds, remove splinters, and treat boils.

Herbal actions describe the therapeutic changes that occur in the body after taking a herb. These actions express how a herb physiologically affects cells, tissues, organs, or systems. Clinical observation has classically defined these actions: increased urine output is diuretic; improved wound repair is vulnerary; reduction in fever is antipyretic. Such descriptors have also become a way to categorize herbs by their effects — nervines form the nervines, bitters are the bitters. Recognizing herbs within these groups gives an initial understanding of their mechanisms, which can then be developed into a finer appreciation of their affinities and clinical relevance.

Herbal energetics are the qualities herbalists attribute to plants, fungi, lichens, foods, and some minerals based on firsthand experience of how they taste, feel, and act in the body. Traditional health systems use these principles to explain how our environment and what we absorb influence health.

Skin Greater plantain is commonly favored for topical use, though both species are appropriate. They are often incorporated into salves for wounds, bruises, ulcers, shingles, and dry, inflamed skin conditions such as eczema and psoriasis.

Because of their soothing properties, plantain extracts can also be useful when included in topical formulations containing potent essential oils, helping to reduce potential irritation — for example, in a strong sinus rub.

Chopped and soaked leaves or fresh leaf juice make a quick remedy for wound healing. It is sometimes combined with yarrow to help staunch bleeding.

Respiratory Ribwort is beneficial for coughs, sore throats, respiratory infections, and for supporting the integrity of the lung mucous membranes, offering anti-inflammatory and antimicrobial actions. It is best taken for colds and coughs as a hot infusion with a little honey and can be combined with yarrow and elderflower when appropriate.

Digestive and urinary systems The mucilage and tannins in both plants help explain their frequent use for acute or chronic irritation of the mucous linings of the digestive and urinary tracts.

Antioxidant, anti-inflammatory, antiviral, and cytotoxic activities have been observed in ribwort across various assays, including enhancement of lymphocyte production, stimulation of interferon-gamma secretion, inhibition of lymphoma and certain carcinoma cell proliferation, and antiviral effects at lower-dose extracts.

Extracts of both greater plantain and ribwort have shown retained antioxidant activity during storage, with greater plantain demonstrating increased antioxidant activity after six months’ storage.

One randomized, triple-blind, 14-day clinical trial involving 130 patients investigated greater plantain for pressure ulcers. Results showed a significant difference in wound resolution between the treatment and control groups, at 96% versus 73%, respectively.

A randomized open-label controlled trial of a hydroalcoholic extract (10% topical gel) of greater plantain on diabetic foot ulcers and pressure ulcers found accelerated healing of diabetic foot ulcers, with reductions in erythema and wound size.

The effect of rectal suppositories containing greater plantain on postpartum haemorrhage was examined in a recent randomized, triple-blind clinical trial. The study showed a statistically significant difference between the group given dill (Anethum graveolens) and the control group, compared with those receiving the greater plantain suppositories, indicating this route can help reduce postpartum haemorrhage.