In addition to valuable antioxidant properties and enhancing overall fluid intake, tea contains many vitamins, minerals and amino acids that include the following:
Vitamins: C, K, B12, B6 and E
Minerals: Trace amounts of potassium, manganese, magnesium, calcium; Tea provides 70% of our daily fluoride intake.
Amino acids: Tea is strong source of amino acids including L-theanine. See above for further details