L-theanine is a non-essential amino acid that is one of green tea’s bioactive compounds. It is known for its ability to stimulate the production of GABA, one of the brain’s most important ‘inhibitory’ neurotransmitters that prevent over-excitation of the brain and helps to induce feelings of calm and relaxation. L-theanine has also been shown to trigger alpha-wave activity in the brain, which is known for meditative states of awareness that can enhance creativity and focus.

Up to 400mg a day can be taken in separate doses to help with both mild and severe anxiety. Be sure to take it away from food and with a small carbohydrate snack such as an oat cake or a piece of fruit. This helps to ensure that there isn’t any competition for absorption between other amino acids.