Effects of Essential Oils on Kidney Health: A Closer Look - Internal Medicine

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The effects of essential oils on the kidneys?


Hello Dr.
Wu, I would like to inquire about the essential oil issue.
I have learned that my colleague is using wild orange essential oil, which I found online contains limonene as its main chemical component.
My colleague applies it topically, but those sitting nearby can smell it.
Could you please help confirm if this could have any effects? Thank you!

Mr. Li, 30~39 year old female. Ask Date: 2016/08/30

Dr. Wu Jiyu reply Internal Medicine


Hello: Your question can be addressed from several perspectives.
1) Essential oils are primarily volatile organic compounds, typically containing multiple chemical constituents (sometimes up to dozens).
There may not always be a single predominant component, and the effects on the human body can vary depending on the product.
If you choose to use them, it is important to select qualified products that have been proven to be safe for the body.
2) Limonene can be irritating to human mucous membranes, and long-term or high-level exposure may cause discomfort for users or those nearby.
3) Some reports indicate that limonene may have adverse effects on animals (such as carcinogenicity), but there is currently no clear evidence that it poses a risk to human health (though it cannot be proven to be absolutely safe either).
Additionally, it has not been established whether it can be absorbed through the skin or mucous membranes to cause health issues in humans (but it also cannot be proven that it cannot).

Reply Date: 2016/08/30

More Info


Essential oils have gained popularity for their aromatic properties and potential therapeutic benefits. However, when it comes to individuals with specific health conditions, such as kidney issues, it is essential to consider the potential effects of these oils on overall health. In your case, you mentioned that your colleague is using wild orange essential oil, which primarily contains limonene as its main chemical component.
Limonene is a naturally occurring compound found in the peels of citrus fruits and is known for its pleasant scent and potential health benefits, including anti-inflammatory and antioxidant properties. However, the impact of essential oils on kidney health is not straightforward and can vary based on several factors, including the specific oil, its concentration, the method of application, and individual health conditions.

For individuals with kidney issues, such as tubulointerstitial nephritis, it is crucial to be cautious. While there is limited direct research on the effects of essential oils on kidney function, some essential oils can be irritating or harmful when absorbed in significant amounts or when used improperly. The kidneys play a vital role in filtering toxins and waste products from the body, and any substance that may stress the kidneys should be approached with caution.

Inhalation of essential oils, such as through diffusion or sitting near someone using them, generally poses a lower risk than direct application to the skin or ingestion. However, if you are sensitive to strong scents or have a pre-existing condition, even inhalation could potentially lead to discomfort or exacerbate symptoms. It is also worth noting that some individuals may have allergic reactions or sensitivities to certain essential oils, which could lead to respiratory issues or other health concerns.

Given that your colleague is applying the oil topically, the concentration of limonene and the area of application are important factors. If the oil is highly concentrated and applied in a way that allows for significant absorption into the skin, there could be a risk of systemic effects, including potential stress on the kidneys.
In conclusion, while wild orange essential oil and its primary component, limonene, are generally considered safe for most people, individuals with kidney conditions should exercise caution. It is advisable to consult with a healthcare professional, such as a nephrologist or a qualified aromatherapist, to discuss any potential risks associated with exposure to essential oils. Additionally, if you experience any adverse reactions or symptoms, it is essential to seek medical advice promptly.
Ultimately, maintaining open communication with your colleagues about your health concerns and preferences regarding scents in the workplace can help create a more comfortable environment for everyone involved.

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