Stinging Nettle: Khasiat Kesehatan, Efek Samping, Dan Cara Membuat

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Stinging Nettle: Khasiat Kesehatan, Efek Samping, Dan Cara Membuat
Stinging Nettle: Khasiat Kesehatan, Efek Samping, Dan Cara Membuat
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Jelatang (juga dikenal sebagai jelatang) adalah bahan pokok dalam pengobatan herbal tradisional dan terutama digunakan untuk mengatasi alergi, peradangan, dan masalah kesuburan. Orang Mesir kuno dilaporkan menggunakan ramuan yang ada di mana-mana ini untuk mengobati radang sendi dan nyeri punggung bawah (1). Ini telah digunakan selama berabad-abad untuk khasiat penyembuhannya.

Minum teh jelatang dapat membantu mengatasi banyak penyakit. Teh herbal ini memiliki banyak manfaat kesehatan, seperti meningkatkan pertumbuhan rambut, mengurangi alergi dan asma, membantu manajemen gula darah, dan meningkatkan kesehatan saluran kemih.

Mari pelajari sedikit lebih banyak tentang manfaat jelatang di artikel ini.

Daftar Isi

  • Apa Itu Stinging Nettle?
  • Apa Manfaat Kesehatan dari Stinging Nettle?
  • Profil Gizi Jelatang yang Menyengat
  • Bagaimana Mengkonsumsinya
  • Cara Membuat Teh Nettle Stinging
  • Apa Saja Efek Samping Jelatang yang Menyengat?

Apa Itu Stinging Nettle?

Jelatang (urtica dioica) telah menjadi bahan utama jamu sejak zaman dahulu (2). Ia memiliki profil biokimia yang eksotis. Tumbuh di iklim ringan hingga sedang di seluruh dunia - terutama di tempat-tempat dengan banyak kelembapan. Anda dapat menemukan spesies jelatang tertentu sering kali di hutan, di tepi sungai atau sungai, dan di pinggir jalan.

Nama ilmiahnya Urtica dioica berasal dari kata Latin uro, yang berarti “membakar,” karena daunnya dapat menyebabkan sensasi terbakar sementara saat bersentuhan. Tanaman ini (atau gulma) berasal dari Meksiko, Italia, Nepal, India, Cina, Rusia, Belanda, Amerika Utara, dan sebagian Afrika. Spesies jelatang tertentu, terutama jelatang yang menyengat, memiliki bulu di daun dan bagian udara. Beberapa di antaranya juga menyengat! Oleh karena itu, nama (1).

Daunnya tertutup rapat dengan rambut yang menyengat, yang melepaskan racun yang berpotensi menimbulkan rasa sakit (1).

Ketika kulit manusia bersentuhan dengan daun atau batang jelatang, maka dengan cepat timbul bercak kemerahan yang gatal dan terbakar. Rambut atau trikoma tanaman secara alami dirancang untuk melindungi tanaman dari serangga.

Namun, mengonsumsi ramuan ajaib ini setelah diproses aman. Bagian berikut ini membahas tentang manfaat daun jelatang. Mulailah menggulir!

Apa Manfaat Kesehatan dari Stinging Nettle?

1. Dapat Meningkatkan Pertumbuhan Dan Kekuatan Rambut

Obat tradisional menggunakan jenis urtika untuk merangsang pertumbuhan rambut. Sebuah penelitian menyelidiki sifat jelatang (Urtica dioica) ini dengan kombinasi ekstrak herbal. Sediaan herbal ini meningkatkan proliferasi sel papilla kulit manusia (3).

Β-sitosterol dalam jelatang memicu pembentukan pembuluh darah baru (angiogenesis). Ini mendorong sintesis faktor pertumbuhan endotel vaskular (VEGF) dan mendukung pertumbuhan rambut baru (3).

Daun dan akar jelatang mengatur aktivitas hormon seks dan substratnya. Mereka membantu mengontrol rambut rontok (alopecia) pada pria dan wanita dengan ketidakseimbangan hormon (4).

2. Dapat Mengobati Demam Jerami, Asma, Dan Alergi

Demam hay atau rinitis alergi disebabkan oleh serbuk sari, tungau debu, jamur, spora jamur, kecoa, dan bulu. Penyebab lainnya termasuk kepekaan makanan, penyakit metabolisme, dan obat-obatan tertentu. Gejalanya meliputi bersin, hidung tersumbat, gatal, lakrimasi (air mata terus menerus), sakit kepala, mulut kering, kantuk, kelelahan, dan aritmia jantung (5).

Di sinilah pengobatan alternatif dapat membantu (5), (6). Jelatang menyengat (Urtica dioica) mengandung nikotinamida, synephrine, dan osthole, dengan sifat anti-inflamasi dan anti-alergi yang kuat.

Fitokimia ini menunjukkan aktivitas antagonis terhadap reseptor histamin pro-inflamasi, menghalangi produksi dan pelepasan histamin (5). Mereka juga mengganggu aktivitas sel pro-inflamasi, pembawa pesan kimiawi, dan gen pengontrol (5).

Praktisi kesehatan harus melihat penggunaan pengobatan alternatif untuk mengobati gangguan akut dan kronis seperti asma, alergi saluran pernapasan, dll sebagai alternatif pengobatan umum (6).

3. Dapat Membantu Mengelola Masalah Prostat

Pertumbuhan berlebih dari kelenjar prostat (benign prostatic hyperplasia) meningkatkan tekanan pada uretra. Ini menonaktifkan sistem kemih dan menyebabkan beberapa gangguan kronis dengan penuaan (7).

Dalam penelitian pada tikus, jelatang menunjukkan perbaikan pada masalah prostat. Ekstrak akar jelatang menghambat aromatase, enzim yang mengubah testosteron menjadi estrogen. Estrogen terkait erat dengan gangguan prostat (7).

Penelitian lain menunjukkan sifat antiproliferatif akar jelatang pada sel kanker manusia. Ekstrak alkohol 20% dari akar jelatang mengurangi pertumbuhan sel epitel prostat kanker selama tujuh hari (8).

4. Dapat Mengurangi Peradangan

Ekstrak jelatang mengandung zat anti inflamasi yang dapat menekan beberapa sitokin pada penyakit radang sendi (9).

According to another study, applying stinging nettle leaf appears to relieve osteoarthritic pain (10). Stinging nettle reduced levels of multiple inflammatory hormones by interfering with their production (11).

However, more research and human studies are required to recommend nettle as an anti-inflammatory treatment.

5. May Lower Blood Pressure

Stinging nettle was traditionally used to treat high blood pressure (12). Stinging nettle extract was found to possess antihypertensive effects.

It may help lower blood pressure by allowing blood vessels to relax and reducing the force of the heart’s contractions. More human studies are needed to confirm these effects.

6. May Aid Blood Sugar Control

Nettle has shown some promising effects on blood glucose levels. Traditional medicine uses nettle leaves to treat diabetes mellitus due to their anti-hyperglycemic properties (13).

However, more research on humans is needed to establish the safety and efficacy of nettle leaves in controlling blood sugar levels.

7. May Monitor Heart And Liver Health

In a 2018 rat study, the administration of 150 mg/kg/day stinging nettle extract for a month improved the blood lipid profile. The nettle extract worked far better than its commercial synthetic drug counterpart (14).

Nettle extract boosts the antioxidant machinery in the body, thereby preventing (and ending) lipid peroxidation. A balanced lipid profile and healthy liver reduce the risk of hypercholesterolemia-induced diseases (15).

Hypercholesterolemia is linked to atherosclerosis and other inflammatory diseases. Nettle leaf helps prevent atherosclerosis and hypertension, as per rat studies. It is, hence, a potent hepato- and cardioprotective dietary additive (16).

8. May Help Treat Menstrual Health, PCOS, And Fertility Concerns

Around 10%-15% of women of reproductive age experience oligomenorrhea and 3%-4% of them have amenorrhea.

Oligomenorrhea and amenorrhea are changes in regular menstrual cycles that cause long menstrual cycles and the absence of menstruation, respectively. While hormone replacement therapy is the most common remedy, herbal medicine is proving to be effective in such cases (17).

Herbal extracts of nettle, peppermint, onion, and nigella showed a positive effect on polycystic ovary syndrome (PCOS). They could control menstrual bleeding, ameliorate menstrual irregularities, balance hyperandrogenism, and promote fertility (17).

These herbs possess phytochemicals, including flavonoids, phenols, phytosterols, and terpenoids, that can mimic the natural hormonal function and restrict bleeding. That is why nettle plant parts can enhance follicle maturation, reduce coagulation factors, relax uterine muscles, and facilitate uterine recovery (17), (18).

9. Can Accelerate Wound Healing

Wound healing could get prolonged in the presence of free radicals and several physiological stresses. The delay might affect one or all steps of wound contraction, recovery of epidermal cells (reepithelialization), and restoration of blood supply (neovascularization) (18).

Using plant medicine for healing wounds is an ancient remedy. Several flowering plants like stinging nettle have been lauded for their vulnerary and antioxidant properties.

The nettle leaf has an antihemorrhagic effect because of its flavonoids, minerals, vitamins, and fatty acid content (18).

Using stinging nettle extract on wounds would reduce the bleeding time and promote blood clotting. It also eliminates pathogens, traps the pro-inflammatory free radicals, and reduces the average healing time in rat models (18).

In short, the leaf, root, and other parts of the stinging nettle have powerful antioxidant, vulnerary, antihemorrhagic, anti-inflammatory, anti-atherosclerotic, anti-hypercholesterolemic, cardioprotective, hepatoprotective, anti-allergic, and anti-diuretic properties.

Shouldn’t there be something in the nettle plant parts that impart(s) these properties?

Absolutely! Learn more about them in the following section.

Nutritional Profile Of Stinging Nettles

The stinging nettle plant contains a load of phytochemicals. The fresh leaves contain β-carotene, violaxanthin, xanthophylls, zeaxanthin, luteoxanthin, and lutein epoxide that impart those mind-blowing benefits to this herb.

Nettle also contains phenolic acids, including carbonic, caffeic, caffeoyl malic, chlorogenic, formic, silicic, citric, fumaric, glyceric, malic, ellagic, oxalic, phosphoric, and succinic acids (19).

Quercetin, myricetin, isorhamnetin, kaempferol, etc. are the flavonoids. Acetylcholine, betaine, choline, lecithin, histamine, scololeptin, rutin, rosinidin, and naringin are a few other phytochemicals present in the nettle leaf, root, and stalk (19).

This medicinal herb scores well in nutrition too. The leaves contain copious amounts of potassium, calcium, folate, vitamins A and K, simple carbohydrates, protein, and essential precursors.

Unit
Energy Energy Protein Total lipid (fat) Ash Carbohydrate, by difference Fiber, total dietary Sugars, total Minerals
Iron, Fe Magnesium, Mg Phosphorus, P Potassium, K Sodium, Na Zinc, Zn Copper, Cu Manganese, Mn Selenium, Se Vitamins
Riboflavin Niacin Vitamin B-6 Folate, total Folate, food Folate, DFE Choline, total Betaine Vitamin A, RAE Carotene, beta Carotene, alpha Vitamin A, IU Lutein + zeaxanthin Vitamin K (phylloquinone)

How To Consume It

Nettle leaves are very versatile and can be brewed as an herbal tea, taken as a supplement, and applied as an ointment.

You can buy dried/freeze-dried leaves, capsules, tinctures, and creams. Stinging nettle ointments are often used to ease osteoarthritis symptoms.

Studies suggest that the following doses are most effective for certain conditions (20):

  • Allergies: 600 mg of freeze-dried leaves per day
  • Enlarged prostate gland: 360 mg of root extract per day

It is available in many stores. The dried leaves and flowers can be steeped to make an herbal tea, while its leaves, roots, and stems can be cooked and added to soups, smoothies, and stews.

Blanched nettles can be a good addition to your salad. Try tossing a few nettle leaves into your salad. If that doesn’t sound appealing, you can brew a cup of fresh tea with nettle.

How To Make Stinging Nettle Tea

What You Need

  • Fresh or dried nettle leaves – 1 loose cup (about 250ml)
  • Water – 1-2 cups
  • Boiling pot or kettle

Let’s Make It

  1. Bring the water to a boil in a kettle or pot.
  2. Add the nettle leaves to the boiling water.
  3. Turn off the heat. Let it steep for about 5-10 minutes.
  4. Strain the contents into the cup(s).
  5. You can add honey or stevia to this tea. However, refrain from adding sugar or sweetener if possible.
  6. Serve hot or warm!

You might find it tasting bitter and woody initially. A few cups or days down, you will come to love its freshness.

Alternatively, blanch the nettle greens in saltwater and use them in salads or pesto. You could also sauté the greens in oil, butter, or other cooking fat. This can be enjoyed with red or white meat and added to salads.

Ingesting nettle greens is a popular and more effective way of obtaining their benefits. But they are wild plants and called ‘stinging’ nettles. Should you be concerned?

Absolutely! Check out the adverse effects of using nettle leaves.

What Are The Side Effects Of Stinging Nettle?

Well, contrary to their wildness, nettles are considered safe. There are very few side effects of having them, but none are lethal or toxic (21).

Hair-like barbs of nettle leaves can harm the skin. These barbs can inject a variety of chemicals, such as (19):

  • Acetylcholine
  • Histamine
  • Serotonin
  • Moroidin
  • Formic acid

These compounds can cause burning and rashes.

Researchers found that nettle roots might cause GI tract disturbances, profuse sweating, and allergies in some individuals. Freshly plucked nettle leaves might cause localized stinging, rash, itching, and tongue edema (21).

But as they act as an emmenagogue, they may possess uterine-stimulant properties. If pregnant women take nettles without medical supervision, they could go into premature labor.

Cooked and dried stinging nettle is safe to consume. However, eating fresh leaves may cause irritation.

Do You Know How The Nettle Stings?

  • The prickly hairs of the nettle have a small tube-like structure. This has a hard-round bulb at the tip and a softer vessel at the base.
  • The bulb ruptures when it encounters skin and exposes a needle-like protrusion.
  • When this tip pierces the skin, it puts pressure on the soft, basal vessel.
  • This releases the irritating substances (viz., acetylcholine and histamine) deep into the skin. This forms the red, angry, itchy, and burning patches on exposed sites.

Conclusion

Stinging nettle may reduce inflammation, aid blood sugar and blood pressure management, and boost hair growth and strength.

The leaves are packed with huge amounts of flavonoids, polysaccharides, vitamins, and hormonal precursors. In fact, stinging nettle is considered the only plant that contains choline acetyl-transferase – an acetylcholine-synthesizing enzyme.

Expert’s Answers For Readers’ Questions

Does nettle tea help you sleep?

Yes. Nettle tea promotes better sleep without increasing blood sugar levels, which makes sleep deeper.

How much nettle tea should you drink a day?

The maximum recommended use of nettle tea is four cups per day.

Does nettle tea contain silica?

Yes, nettle leaves contain silica (22).

Is stinging nettle good for the kidneys?

Yes. The stinging nettle can therapeutic effects toward urinary tract ailments and kidney stones. The flavonoids, anthocyanins, and saponins present in stinging nettle can help inhibit calcium and oxalate deposition (23).

Does stinging nettle interact with medications?

Yes. Using herbal medicines like nettle leaves with anti-inflammatory drugs is not recommended as they may interact with synthetic drugs. Do not take these leaves when you are on painkillers or similar medications without consulting your doctor.

23 sources

Stylecraze has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. We avoid using tertiary references. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.

  • Comparison of nutritional properties of Stinging nettle (Urtica dioica) flour with wheat and barley flours, Food Science & Nutrition, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC4708629/

  • Stinging nettles leaf (Urtica dioica L.): Extraordinary vegetable medicine, Journal of Herbal Medicine.

    www.sciencedirect.com/science/article/pii/S2210803312000978

  • Proprietary Herbal Extract Downregulates the Gene Expression of IL-1α in HaCaT Cells: Possible Implications Against Nonscarring Alopecia, Medical Archives, Journal of the Academy of Medical Sciences, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC6126931/

  • Alopecia: Switch to Herbal Medicine, Journal Of Pharmaceutical Research And Opinion.

    citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.1010.246&&rep=rep1&&type=pdf

  • Efficacy of Supportive Therapy of Allergic Rhinitis by Stinging Nettle (Urtica dioica) root extract: a Randomized, Double-Blind, Placebo- Controlled, Clinical Trial, Iranian Journal of Pharmaceutical Research, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC5963652/

  • Complementary and alternative interventions in asthma, allergy, and immunology, Annals of allergy, asthma & immunology, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/15330011

  • The histological and histometrical effects of Urtica dioica extract on rat’s prostate hyperplasia, Veterinary Research Forum, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC4405682/

  • Antiproliferative effect on human prostate cancer cells by a stinging nettle root (Urtica dioica) extract, Planta medica, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/10705733

  • Effects of the antirheumatic remedy hox alpha–a new stinging nettle leaf extract–on matrix metalloproteinases in human chondrocytes in vitro. Histology and Histopathology, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/11962753

  • Randomized controlled trial of nettle sting for treatment of base-of-thumb pain, Journal of Royal Society of Medicine, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/10911825

  • Plant extracts from stinging nettle (Urtica dioica), an antirheumatic remedy, inhibit the proinflammatory transcription factor NF-kappaB, FEBS Letters, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/9923611

  • Mechanisms underlying the antihypertensive properties of Urtica dioica, Journal of Translational Medicine, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/27585814

  • Improved glycemic control in patients with advanced type 2 diabetes mellitus taking Urtica dioica leaf extract: a randomized double-blind placebo-controlled clinical trial, Clinical Laboratory, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/24273930

  • Protective effect of Urtica dioica leaf hydro alcoholic extract against experimentally-induced atherosclerosis in rats, Avicenna Journal of Phytomedicine, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC5987440/

  • Immunohistopathological and Biochemical Study of the Effects of Dead Nettle (Urtica Dioica) Extract on Preventing Liver Lesions Induced by Experimental Aflatoxicosis in Rats, West Indian Medical Journal, The University of The West Indies.

    www.mona.uwi.edu/fms/wimj/article/3024

  • Urtica dioica L. leaf extract modulates blood pressure and oxidative stress in spontaneously hypertensive rats, Phytomedicine, United States Department of Agriculture.

    pubag.nal.usda.gov/catalog/6112850

  • Herbal Medicine for Oligomenorrhea and Amenorrhea: A Systematic Review of Ancient and Conventional Medicine, BioMed Research International, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC5878906/

  • Exploring the Urtica dioica Leaves Hemostatic and Wound-Healing Potential, BioMed Research International, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC5672119/

  • Phenolic Compounds Analysis of Root, Stalk, and Leaves of Nettle, The Scientific World Journal, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC3349212/

  • Urtica dioica for treatment of benign prostatic hyperplasia: a prospective, randomized, double-blind, placebo-controlled, crossover study, Journal of Herbal Pharmacotherapy, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pubmed/16635963

  • Risks and Benefits of Commonly used Herbal Medicines in México, Toxicology and Applied Pharmacology, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC2322858/

  • Urtica spp.: Ordinary Plants with Extraordinary Properties, Molecules, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC6100552/

  • Dietary Plants for the Prevention and Management of Kidney Stones: Preclinical and Clinical Evidence and Molecular Mechanisms, International Journal of Molecular Sciences, US National Library of Medicine, National Institutes of Health.

    www.ncbi.nlm.nih.gov/pmc/articles/PMC5877626/

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