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L-theanine is a nutrient found in some plants and supplements.
It has gained popularity for its potential health benefits, particularly related to stress relief and improved sleep.
What Is L-Theanine?
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It is also available in supplement form, typically as a pill or powder.
Athletes and other individuals under stress have also reported improved performance and reduced stress responses when using L-theanine.
May Increase Focus and Attention
L-theanine may enhance attention, focus and cognitive performance.
Supports the Immune System
L-theanine has antioxidant, immunoregulatory and anti-inflammatory properties.
Additional research is needed on more diverse populations to further clarify and support these benefits.
As with any supplements you’re considering, however, double-check you purchase from a reputable manufacturer.
These side effects may include:
The recommended daily intake of caffeine is 400 milligrams or less.
Who Should Take L-Theanine?
and health care workers, she adds.
Who Should Avoid It?
While L-theanine is safe for most people, some should avoid it.
Also, anyone receiving chemotherapy for cancer treatment should avoid L-theanine supplements until after their treatment course is complete.
It is also available in supplement form.
Generally, it’s safe to drink tea and take supplements containing L-theanine every day.
However, talk to your doctor before starting to ensure its safe for you.
L-theanine may improve sleep quality by reducing stress and promoting a sense of calm.
No major side effects have been reported, and L-theanine is generally considered safe for most people.
Some people may experience side effects like jitteriness, headaches and irritability when drinking too much caffeine from tea.
