The polyphenols included in black tea may reduce the chance of tumor formation. It lowers the risk of skin, breast, lung, and prostate cancers in particular.
Flavonoids, another type of antioxidant that is good to the heart, are found in black tea.
Black tea has no sugars, it may increase insulin use in the body and lower blood sugar levels.
Caffeine and the amino acid L-theanine found in black tea may help with attention and alertness.
Black tea contains antioxidants and polyphenols, which may help to prevent premature aging and wrinkles.