Is stinging nettle (Urtica dioica) safe for use?

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Last updated: March 28, 2025View editorial policy

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From the Research

Stinging nettle is generally safe for most adults when used appropriately, but it does have potential risks and side effects. When consumed as a tea, tincture, or supplement, typical dosages range from 300-600mg of dried leaf extract daily or 1-4 teaspoons of dried leaves steeped in hot water for tea. However, pregnant women should avoid stinging nettle as it may stimulate uterine contractions 1. People with diabetes, low blood pressure, or kidney disorders should consult healthcare providers before use since nettle can affect blood sugar levels and blood pressure, and may increase urination. Those taking medications for high blood pressure, diabetes, or blood thinners should be cautious due to potential interactions.

Key Considerations

  • Handling fresh nettle plants requires wearing gloves to avoid the painful sting caused by the plant's tiny hairs containing formic acid and histamine.
  • Cooking or drying the plant neutralizes these stinging compounds, making it safe to consume.
  • While stinging nettle offers potential benefits for allergies, arthritis, and urinary issues due to its anti-inflammatory and diuretic properties, it's always best to consult with a healthcare provider before adding it to your health regimen 2, 3.

Safety and Efficacy

The most recent and highest quality study, published in 2022, highlights the nutritional and pharmacological importance of stinging nettle, including its antiproliferative, anti-inflammatory, antioxidant, analgesic, anti-infectious, hypotensive, and antiulcer characteristics 1. However, it's essential to consider the potential risks and side effects, particularly for individuals with certain health conditions or taking specific medications.

Recommendations

  • Consult with a healthcare provider before using stinging nettle, especially if you have any underlying health conditions or are taking medications.
  • Follow recommended dosages and preparation methods to minimize potential risks and side effects.
  • Be aware of the potential interactions between stinging nettle and other medications, and monitor your health closely while using it.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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