L-Theanine is an one of kind amino acid that comes from green tea leaves. Green tea has been passed down from generation to generation as a relaxation helper. L-Theanine has in the past also been studied for being able to promote relaxation without causing any drowsiness.

The research that has been done on L-Theanine suggest that not only can it promote relaxation, but it also supports the immune system and may be able to provide benefits for the cardiovascular and neurological health.

How Safe Is Nutrition L-Theanine?

L-Theanine is not well established. There is no information on whether or not the product is safe during pregnancy or while breast-feeding. There are few side effects reported, these include headache, dizziness, and GI symptoms. L-Theanine has been granted a GRAS (Generally recognized as safe) status by the FDA.


The ingredients in each capsule of L-Theanine include:

  • L-Theanine: This is commonly used for the treatment of anxiety and high blood pressure, for preventing Alzheimer’s disease, and for making cancer drugs more effective.
  • Cellulose: Is used for kidney failure and combined with other medicines for healing wounds.


The recommended dosage is 1 to 2 capsules daily. The studies that have been done on the effects of L-Theanine show that 200 to 250 mg is all that is needed for sufficient results to be seen.


New Beginnings L-Theanine is available for $19 a bottle. Each bottle contains sixty (60) 100mg capsules. One bottle will last between 30 and 60 days, depending on your dosage.


There is no guarantee offered for New Beginnings L-Theanine. With the price per bottle, the cost does not seem to justify risking paying for a supplement that may not work for you.


While it may be a good product, L-theanine is not guaranteed to do anything for you. As with all supplements, your mileage may and likely will vary.

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