6 Benefits of Nettle Tea (Side Effects and Preparation Guide)

5 Benefits of Nettle Tea (Side Effects and Preparation Guide)

Nettle tea is an herbal infusion made from the dried or fresh leaves of Urtica dioica, known as the stinging nettle plant.

It has been used for centuries in traditional medicine to reduce inflammation, and the leaves are packed with vitamins A, C, K, and B vitamins, plus essential minerals including iron, calcium, magnesium, potassium, and silica.

This article shares what I learned about nettle tea through scientific research and personal experience in my gut health journey, including benefits, preparation methods, and precautions.

I'll also explain why nettle earned its place as one of seven essential plants in Cosmic Hue tea.

6 Health Benefits of Nettle Tea

1. May Reduce Inflammation

Nettle contains powerful compounds that may ease arthritis pain, joint stiffness, and muscle aches. The plant's antioxidant and antimicrobial properties may also support gut health while protecting cells from damage.

Studies confirm that nettle reduces inflammatory markers at a systemic level, matching what I experienced personally in my journey with Crohn’s disease.

Another study with 27 osteoarthritis patients found that daily nettle leaf application for one week significantly reduced both pain (P = 0.026) and disability (P = 0.0027) compared to placebo.

2. May Provide Allergy Relief

Nettle acts as a natural antihistamine for seasonal allergies, reducing common symptoms including sneezing, nasal congestion, and itching. It works best when you start drinking it before allergy season begins and continue throughout the period when your symptoms typically flare.

Lab studies show nettle blocks the H1 histamine receptor, the same mechanism used by conventional antihistamines. Further research reveals it also prevents mast cells from releasing inflammatory compounds and inhibits three key enzymes that produce allergy symptoms.

3. May Support Urinary and Prostate Health

Nettle's mild diuretic action increases urine flow and helps flush the urinary tract naturally, making it a traditional remedy for fluid retention and urinary discomfort.

Supporting this point, one study found that nettle extract increased urine output by 11% and sodium excretion by 28% at safe doses.

A randomised trial of 100 men with enlarged prostate showed 600mg daily nettle root for 8 weeks reduced urinary symptom scores from 26.5 to 2.1, representing a 92% improvement with no reported side effects.

4. May Help Balance Blood Sugar

Research suggests nettle may offer modest blood sugar regulation and support healthy blood pressure levels with consistent use.

One study showed 33% lower blood sugar one hour after glucose consumption, likely by reducing intestinal glucose absorption.

It’s important to note that this was an animal study, not a human trial. While nettle shows signs of promise, never replace prescribed diabetes medications without medical supervision.

5. May Strengthen Hair, Skin, and Bones

The high silica content in nettle may support hair strength and collagen production for healthy skin. The calcium and vitamin K content can also maintain bone density, which was crucial for me after my weight dropped to just 5 stone after my emergency surgery.

Analysis shows 100g of cooked nettle provides 90-100% of your daily vitamin A needs, plus substantial amounts of calcium, iron, protein, and B-complex vitamins that remain bioavailable even after cooking.

6. May Support Gut Health and Digestion

Nettle's anti-inflammatory and antioxidant properties extend directly into the digestive tract, making it a useful plant for people managing bloating, constipation, and conditions like IBS.

In a double-blind, placebo-controlled trial of 64 IBD patients, 12 weeks of daily nettle extract significantly improved quality of life scores and reduced the inflammatory markers compared to placebo.

What Are the Side Effects of Nettle Tea?

When you first start drinking nettle tea, you might experience mild stomach upset, increased urination, or occasional nausea as your body adjusts.

Less common reactions include diarrhoea, sweating, or skin rash in sensitive individuals. Rare but serious allergic reactions can occur with swelling, breathing difficulty, or rapid heartbeat requiring immediate medical attention.

Stop using nettle if you experience worsening bloating, persistent diarrhoea, dizziness, or any concerning symptoms that don't improve.

When combined with diabetes medications, nettle may lower blood sugar too much. Similarly, blood pressure medications combined with nettle risk dropping blood pressure excessively. Possible interactions also exist with NSAIDs and other painkillers. My advice to coaching clients has always been simple. When in doubt, check with your GP first.

How to Prepare Nettle Tea

Characteristic Regular Infusion Strong Infusion Fresh Leaves Infusion
Amount 2 teaspoons per cup 3 teaspoons per cup 1 part leaves : 2 parts water
Water Boiling Boiling Bring to boil, then remove
Steeping 3-5 minutes 10-30 minutes 3-5 minutes
Strength Moderate Strong and bitter Moderate
Best For Daily use Maximum extraction Fresh taste

For most people, going with a regular infusion using dried leaves is the safest and most pleasant way to enjoy nettle tea. For concentrated nutrient extraction, you can choose to go with a strong infusion using dried leaves.

If you want to use fresh leaves for a different flavour, then be careful while handling the leaves and be sure to use gloves so you don’t sting yourself.

If you find the taste of nettle tea a little bitter, you can add fresh lemon juice or stir in honey for natural sweetness. You can enjoy it hot during winter or poured over ice in summer.

Frequently Asked Questions

How much nettle tea should I drink daily?

Start with 1 cup daily to assess how your body responds. I personally drink nettle tea in Cosmic Hue once or twice per day with a focus on daily gut inflammation management.

When is the best time to drink nettle tea?

Nettle tea is naturally caffeine-free, which means you can enjoy it at any point in the day.

Drinking nettle tea first thing in the morning on an empty stomach gives your digestive system a clean start and supports the gut lining before food arrives. Before or after meals works well for digestion. In the evening, it acts as a calming wind-down that supports overnight gut repair.

Who should avoid nettle tea?

Pregnant women should avoid nettle tea as it may stimulate uterine contractions, especially during the first and second trimesters. People with kidney disease should be cautious, as the diuretic effects may worsen their condition.

Those with low blood pressure or low blood sugar should avoid nettle, as it may enhance these effects. Anyone with bleeding disorders or scheduled for surgery within two weeks should stop taking nettle.

Does nettle tea help with constipation?

Nettle's mild diuretic action increases fluid movement through the body, and its fibre content adds bulk to support regular bowel movements. Many people find drinking a cup first thing in the morning on an empty stomach helps stimulate digestion and ease constipation.

Results vary depending on the underlying cause, so if constipation is persistent, speak to your GP.

Does nettle tea help with bloating?

Nettle's anti-inflammatory properties can help calm irritation in the digestive tract, which can contribute to bloating after meals. Drinking it before or after eating gives the plant's active compounds time to work as food moves through your system. Consistent daily use tends to produce better results than occasional cups.

Conclusion

Nettle tea provides research-supported benefits for inflammation, allergies, urinary health, and overall wellness when prepared and consumed properly.

Most healthy adults can safely drink 1 cup daily, while respecting important precautions around pregnancy, medical conditions, and medication interactions.

The powerful benefits of nettle listed in this article are the reason I combined nettle with six other healing plants in Cosmic Hue tea to give you complete gut health support in one daily cup.

Author: Manny is the founder of Fifth Ray and a certified Gut Health Coach. After battling Crohn's Disease for 16 years, he transformed his gut health through plant-based healing. His story has been featured on BBC, ITV, and Daily Mail.

Disclaimer: This information is for education only. Cosmic Hue is not intended to diagnose, treat, cure, or prevent any disease. Always speak to your healthcare provider before changing your routine.

References

Bakhshaee, M., Mohammadpour, A. H., Esmaeili, M., Jabbari Azad, F., Alipour Talesh, G., Salehi, M., & Mohajer, M. N. (2017). 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, 16(Suppl.), 112–118. https://pmc.ncbi.nlm.nih.gov/articles/PMC5963652/

Bhusal, K. K., Magar, S. K., Thapa, R., Lamsal, A., Bhandari, S., Maharjan, R., Shrestha, S., & Shrestha, J. (2022). Nutritional and pharmacological importance of stinging nettle (Urtica dioica L.): A review. Heliyon, 8(6), Article e09717. https://pmc.ncbi.nlm.nih.gov/articles/PMC9253158/

Devkota, H. P., Paudel, K. R., Khanal, S., Baral, A., Panth, N., Adhikari-Devkota, A., Jha, N. K., Das, N., Singh, S. K., Chellappan, D. K., Dua, K., & Hansbro, P. M. (2022). Stinging nettle (Urtica dioica L.): Nutritional composition, bioactive compounds, and food functional properties. Molecules, 27(16), Article 5219. https://doi.org/10.3390/molecules27165219

Ge, B., Zhang, Z., & Zuo, Z. (2014). Updates on the clinical evidenced herb-warfarin interactions. Evidence-Based Complementary and Alternative Medicine, 2014, Article 957362. https://doi.org/10.1155/2014/957362

Ghorbanibirgani, A., Khalili, A., & Zamani, L. (2013). The efficacy of stinging nettle (Urtica dioica) in patients with benign prostatic hyperplasia: A randomized double-blind study in 100 patients. Iranian Red Crescent Medical Journal, 15(1), 9–10. https://doi.org/10.5812/ircmj.2386

Health and Therapy Services. (2024). The nutritional and medicinal value of stinging nettles. https://cup-o-t.co.uk/2024/06/25/the-nutritional-and-medicinal-value-of-stinging-nettles/

MedicineNet. (n.d.). Nettle: Enlarged prostate uses, benefits, side effects. Retrieved February 5, 2026, from https://www.medicinenet.com/nettle/article.htm

Nemati Gorgani, S., Agah, S., Shidfar, F., Gohari, M. R., & Faghihi, A. H. (2017). Effects of Urtica dioica leaf extract on inflammation, oxidative stress, ESR, blood cell count and quality of life in patients with inflammatory bowel disease. Journal of Herbal Medicine, 9, 32–41. https://www.sciencedirect.com/science/article/abs/pii/S221080331730026X

Randall, C., Randall, H., Dobbs, F., Hutton, C., & Sanders, H. (2000). Randomized controlled trial of nettle sting for treatment of base-of-thumb pain. Journal of the Royal Society of Medicine, 93(6), 305–309. https://doi.org/10.1177/014107680009300607

Roschek, B., Jr., Fink, R. C., McMichael, M., & Alberte, R. S. (2009). Nettle extract (Urtica dioica) affects key receptors and enzymes associated with allergic rhinitis. Phytotherapy Research, 23(7), 920–926. https://doi.org/10.1002/ptr.2763

Rutto, L. K., Xu, Y., Ramirez, E., & Brandt, M. (2013). Mineral properties and dietary value of raw and processed stinging nettle (Urtica dioica L.). International Journal of Food Science, 2013, Article 857120. https://doi.org/10.1155/2013/857120

Samakar, B., Mehri, S., & Hosseinzadeh, H. (2022). A review of the effects of Urtica dioica (nettle) in metabolic syndrome. Iranian journal of basic medical sciences, 25(5), 543–553. https://doi.org/10.22038/IJBMS.2022.58892.13079

Tahri, A., Yamani, S., Legssyer, A., Aziz, M., Mekhfi, H., Bnouham, M., & Ziyyat, A. (2000). Acute diuretic, natriuretic and hypotensive effects of a continuous perfusion of aqueous extract of Urtica dioica in the rat. Journal of Ethnopharmacology, 73(1–2), 95–100. https://doi.org/10.1016/S0378-8741(00)00270-1

WebMD Editorial Contributors. (2026). Stinging nettle. WebMD. https://www.webmd.com/vitamins/ai/ingredientmono-664/stinging-nettle#precautions