When taken by mouth: L-theanine is possibly safe when used short-term. Doses of up to 900 mg daily have been safely used for 8 weeks. It isn't clear if L-theanine is safe to use for longer periods ...

L-theanine is an amino acid found in tea. Although L-theanine is associated with several health benefits, no research confirms if it is effective in treating bipolar disorder. L-theanine is a ...

In a 2020 study, 56 participants took 30 mg of saffron daily over ... at its effective dose, which is 200 mg to 400 mg per day in capsule form. Pure Encapsulations L-Theanine contains 400 mg ...

However, most healthy individuals can safely take L-theanine in doses of up to 500 mg daily. Age and past medical history may also influence how much sleep you need. Consult your healthcare ...

Glutamine has most often been used by adults in doses of 15-30 grams by mouth daily for up to 12 months. Speak with a healthcare provider to find out what dose might be best for a specific condition.