Green or Black Tea: Which Is Better For You?

In addition to L-theanine, both green and black tea contain powerful antioxidants known as flavonoids, which are a type of polyphenol. These heart-protecting flavonoids have been shown to reduce bad cholesterol, lower blood pressure, and reduce blood vessel plaque formation.

The benefits of green tea

Because green tea (and matcha, which is essentially pulverized green tea) undergoes a shorter oxidation period than black tea, it contains more of a special kind of polyphenol antioxidant known as epigallocatechin-3-gallate (EGCG). This shorter oxidation process is also, incidentally, what makes green tea “green”—its leaves are less exposed to oxygen and therefore don’t turn black, keeping certain plant compounds intact.

Green tea’s high levels of EGCG are the reason it’s been widely touted as a health tonic: EGCG has been shown to inhibit the growth of cancer cells, reduce the risk of Alzheimer’s disease, improve stamina, protect the liver and the immune system, and prevent damage from bacteria and viruses. “Green tea naturally promotes the activation of the immune system and the acceleration of metabolism,” sports nutrition expert Sandra Lordén confirms.

The benefits of black tea

Black tea has its own special polyphenols, too. They’re called theaflavins and are formed during the oxidation process. They have many of the same antioxidant properties as the polyphenols in green tea and have been shown to promote fat breakdown, improve bone health, reduce oxidative stress, and benefit the cardiovascular system.

“Black tea can act as a perfect complement to reduce cholesterol levels and protect the liver, among many other functions,” says Marta Masi. Additionally, black tea often contains a higher concentration of L-theanine, which “increases blood circulation and the capacity for concentration and alertness.”

Which is better, black or green tea?

You really can’t go wrong with either: both have proven benefits. As long as you’re not sensitive to caffeine, don’t load up on sweeteners, and avoid drinking tea too late in the day, both green and black teas can be a healthy addition to your lifestyle. Just remember to eat a well-rounded diet that includes lots of fruits and vegetables, drink plenty of water, and to prioritize sleep, movement, and your mental health, too.