The good benefits of herbal teas have been widely publicized. When the minerals magnesium and potassium, vitamins B complexes and C, chemicals and enzymes, polyphenols, flavonoids, amino acids, and catechins that are contained in tea are released upon brewing, it is said they reduce the risk of some cancers, heart and gum disease, protect against viruses, bacteria, hardening of the arteries and blood clots, improve circulation, fight infection and migraine headaches, strengthen bone density, may help to promote weight loss, and deflect the carcinogens in grilled or fried foods.
The Harvard Medical School states that due to the anti oxidants in tea preventing and repairing the free radicals attacking ones cells, if one drinks only a cup of tea per day, they reduce their rate of a heart attack by forty-four per cent.
Teas can produce negative side effects. Too much tea or the consumption of very strong tea blends can induce symptoms of insomnia, irritable stomach membranes, gall bladder attacks, cause kidney stones, constipation, and yellowed-stained teeth.