l-Theanine attenuates liver aging by inhibiting advanced glycation end products in d-galactose-induced rats and reversing an imbalance of oxidative stress and inflammation – ScienceDirect

• Tea-derived l-theanine inhibited AGE production in d-galactose-induced aging rats.

• l-Theanine increased FoxO1 expression and antioxidative enzymes in aged livers.

• l-Theanine could reduce oxygen free radicals and maintain the redox balance.

• l-Theanine supplementation could protect against age-related liver damage.