Lemongrass tea is a popular herbal infusion known for its distinct citrus flavor and purported health benefits, ranging from aiding digestion to reducing inflammation. However, as with any potent herbal remedy, it is not without potential risks. Understanding what is the side effect of lemongrass tea is vital for safe consumption, especially for certain individuals.
Common Side Effects
Even with moderate consumption, some people may experience mild side effects from lemongrass tea. These symptoms are often related to the herb's natural diuretic and sedative properties.
Dizziness and Drowsiness
One of the most frequently reported side effects is a feeling of dizziness or drowsiness. This can be caused by the calming effect lemongrass can have on the nervous system, as well as its ability to lower blood pressure. Those who drive or operate machinery should be particularly cautious when first consuming the tea.
Gastrointestinal Discomfort
While often used to soothe digestive issues, excessive amounts of lemongrass tea can have the opposite effect on some individuals. Potential gastrointestinal side effects include:
- Nausea and vomiting.
- Stomach pain.
- Changes in bowel habits, including diarrhea.
Dry Mouth and Increased Urination
Lemongrass acts as a natural diuretic, meaning it promotes the excretion of excess fluid from the body. While this is often a desired effect for detoxification, it can also lead to increased urination and, in some cases, a feeling of dry mouth. It is important to stay hydrated when consuming lemongrass tea.
Serious Health Concerns and Contraindications
For certain groups, the risks of drinking lemongrass tea are more serious and can contraindicate its use entirely. It is highly recommended to consult a doctor before consumption if any of these conditions apply.
Pregnancy and Breastfeeding
There is strong medical advice to avoid lemongrass, especially in medicinal concentrations, during pregnancy. Studies have shown that certain compounds in lemongrass, like citral and myrcene, can potentially stimulate uterine contractions and even cause birth defects in animal studies. Due to insufficient safety data, it is also recommended to avoid lemongrass tea while breastfeeding.
Potential for Kidney Damage
Excessive and prolonged intake of lemongrass tea may negatively affect kidney function. A clinical study observed that daily consumption over 30 days led to a significant decrease in the estimated glomerular filtration rate (eGFR) and increased serum creatinine levels in healthy adults, suggesting adverse effects on kidney filtration. Individuals with pre-existing kidney disease should completely avoid regular intake.
Low Blood Pressure (Hypotension)
As a vasodilator, lemongrass can lower blood pressure. This can be dangerous for individuals who already have low blood pressure or are on medication for high blood pressure. The combination could cause blood pressure to drop too low, leading to fainting, dizziness, and weakness.
Allergic Reactions
Some people may be allergic to lemongrass. Symptoms of an allergic reaction can range from mild skin rashes and itching to severe swelling, hives, and difficulty breathing. If you experience any of these symptoms, stop consumption immediately and seek medical attention.
Drug Interactions
Lemongrass has the potential to interact with several types of medications. If you are taking any prescription drugs, consult your healthcare provider before incorporating lemongrass tea into your diet.
Medications for Blood Pressure and Diabetes
Lemongrass's effect on lowering blood pressure and blood sugar can be problematic when combined with corresponding medications. This combination could lead to dangerously low blood pressure (hypotension) or blood sugar (hypoglycemia).
Sedative Medications
As lemongrass can cause drowsiness, combining it with other sedative medications, such as pentobarbital, may increase sleepiness and adverse side effects.
Blood Thinners
Some research suggests that lemongrass may have a blood-thinning effect, which could increase the risk of bleeding in individuals taking anticoagulant medications like warfarin or aspirin.
How to Consume Lemongrass Tea Safely
For most healthy adults, consuming lemongrass tea in moderation (1-2 cups per day) is generally safe. When introducing it into your diet, start with a small amount to see how your body reacts before increasing intake. Never exceed recommended dosages without professional medical advice.
| Comparison: Culinary vs. Medicinal Lemongrass Dosage | Aspect | Culinary Use (Food Flavoring) | Medicinal Use (Tea/Supplements) |
|---|---|---|---|
| Amount | Small, intermittent quantities in soups or curries. | Larger, more concentrated, and more frequent doses. | |
| Concentration | Low; often used with other ingredients. | High; the primary ingredient in the infusion. | |
| Frequency | Occasional, as part of a meal. | Regular, often daily or multiple times per day. | |
| Risk Profile | Generally very low risk for most individuals. | Higher risk of side effects, especially with prolonged use. | |
| Considerations | Typically safe for general population. | Should be used with caution and professional medical guidance for certain conditions. |
For more detailed information on specific drug interactions, it is advisable to consult reliable medical sources such as the Memorial Sloan Kettering Cancer Center website.
Conclusion: Moderation is Key
While a refreshing and potentially beneficial herbal tea, lemongrass is not suitable for everyone. The side effect of lemongrass tea can range from mild annoyances like dizziness and dry mouth to more severe issues like kidney damage, especially with high or prolonged intake. For those who are pregnant, have pre-existing kidney or heart conditions, or are on certain medications, the risks far outweigh the benefits. Safe consumption hinges on moderation and awareness of your body's specific health profile. Always consult a healthcare provider before starting any new herbal regimen to ensure it is appropriate for you.
