Who shouldnt take L-theanine?

Understanding L-Theanine: Who Should Avoid It?
L-theanine, an amino acid primarily found in green and black tea, is celebrated for its calming effects and potential cognitive benefits. However, while many people may find it beneficial, certain groups should exercise caution or avoid its use altogether.
Pregnant and Breastfeeding Women
One of the primary groups advised against using L-theanine includes pregnant and breastfeeding women. Current research lacks sufficient reliable information regarding the safety of L-theanine during pregnancy and lactation. Therefore, to err on the side of caution, it is recommended that these individuals refrain from using this supplement.
Children
Another demographic that should be cautious is children. While L-theanine is considered possibly safe for short-term use in children, the lack of extensive research means that parents should consult healthcare professionals before administering it to younger individuals. The effects of L-theanine on developing bodies and brains are not fully understood, making it prudent to approach its use with caution.
Individuals with Certain Mental Health Conditions
People with specific mental health conditions, particularly those with schizophrenia or schizoaffective disorder, should also be wary. Although some studies suggest that L-theanine may help reduce anxiety and improve symptoms in these populations, the overall effects can vary significantly from person to person. Therefore, individuals with these conditions should consult their healthcare providers before considering L-theanine as a supplement.
Those on Certain Medications
Individuals taking medications that affect the central nervous system should also be cautious. L-theanine can interact with various medications, particularly those that are sedative or anti-anxiety in nature. This interaction could potentially enhance the effects of these medications, leading to increased drowsiness or other side effects. Therefore, it is crucial for anyone on such medications to discuss the use of L-theanine with their healthcare provider.
Conclusion
While L-theanine offers numerous benefits, including stress relief and improved focus, it is not suitable for everyone. Pregnant and breastfeeding women, children, individuals with certain mental health conditions, and those on specific medications should approach L-theanine with caution. Consulting a healthcare professional is always advisable to ensure safety and appropriateness of use.

Can everyone take L-theanine?

L-theanine is generally considered safe for most people, but it’s always a good idea to talk to your healthcare provider before taking any new supplement, especially if you have any underlying health conditions or are taking medications.

Does L-theanine affect heart?

L-theanine increases the activities and expression of antioxidant enzymes. L-theanine increases the expression of Nrf2 and PPARα to protect the heart.

What medications interact with theanine?

Theanine interactions
Some sleep medications such as diazepam (Valium), lorazepam (Ativan), and zolpidem (Ambien) may interact with L-theanine and cause more drowsiness. It may also interact with sedatives, stimulants, and medications for high blood pressure.

Does theanine affect the heart?

L-theanine increases the activities and expression of antioxidant enzymes. L-theanine increases the expression of Nrf2 and PPARα to protect the heart.

What can you not mix with L-theanine?

Theanine interactions
Some sleep medications such as diazepam (Valium), lorazepam (Ativan), and zolpidem (Ambien) may interact with L-theanine and cause more drowsiness. It may also interact with sedatives, stimulants, and medications for high blood pressure.

What medications interfere with L-theanine?

Some sleep medications such as diazepam (Valium), lorazepam (Ativan), and zolpidem (Ambien) may interact with L-theanine and cause more drowsiness.

Can L-theanine cause rapid heart rate?

Kimura (2007) reported that L-theanine intake reduced heart rate and salivary immunoglobulin A responses to an acute stress task (an arithmetic task), suggesting that L-theanine could reduce stress by inhibiting cortical neuron excitation [5].

Who should not use L-theanine?

After taking advice from experts, the FDA classified L-theanine as “generally recognized as safe.” This classification means that they believe this additive to be safe when people use it as the packaging suggests. However, women who are pregnant or breastfeeding should not use L-theanine.

Is L-theanine hard on your liver?

L- Theanine prevents alcoholic liver injury through enhancing the antioxidant capability of hepatocytes.

What are the negative side effects of L-theanine?

Possible Adverse Effects of L-Theanine

• Lowering blood pressure (which may be beneficial to some people).
• Appetite loss.
• Diarrhea.>
• Difficulty in concentration.
• Headache.
• Nausea.
• Extreme high doses (29mg/kg/day) can cause liver toxicity.