Green Tea and Matcha
Green tea is one of the most popular types of tea on the market, due in part to its reputation for providing antioxidants and boosting wellness. Matcha, or powdered green tea, is also very popular in health food stores and in wellness communities. According to some sources, one cup of matcha tea provides the benefits of 10 cups of regularly brewed green tea.
Green tea and green tea extracts have been widely studied for their potential health benefits. But only some of those benefits are supported by scientific evidence, according to the National Institutes of Health.
According to the Integrative Medicine Database at Memorial Sloan Kettering Cancer Center, there is limited evidence that tea has any anti-cancer properties. And some studies have shown mixed results. The same holds true for green tea's possible effect on cholesterol and heart disease.
Green tea may have a limited ability to prevent tooth decay, although the theory has not been tested in clinical trials. Some studies have shown that drinking green tea may help you reduce your risk of developing high blood pressure.
The caffeine in green tea may stimulate the nervous system to boost mental awareness and may have some (limited) effect on metabolism.
Side effects of drinking green tea may include nausea and stomach upset in some people. The caffeine in green tea may also cause nervousness and problems sleeping.
Traditional black tea is the most popular kind of tea worldwide. Types of black tea include Earl Grey, Darjeeling, masala chai (when it is blended with other spices), English breakfast tea, and scented black teas like rose black tea and lychee black tea. There are also popular black tea blends such as Lapsang Souchong (a smoky blend), Keemun black tea, and Yunnan black tea. Traditional black tea contains approximately 50-90 milligrams of caffeine per cup.
Like green tea, black tea contains polyphenols including catechins, flavonoids, and tannins. Polyphenols are plant-based compounds that may provide health benefits. Researchers have linked the consumption of flavonoids to important health outcomes, but scientists advise that more research is needed to say for certain if black tea can significantly boost your health.
If you prefer a tea that is slightly richer than black tea, then try oolong tea. You'll get about 30 milligrams of caffeine per cup (less than coffee), although the caffeine in your teacup will vary based on a number of factors, including brew time.
Oolong tea, like green tea, has a reputation as being helpful for weight loss. Some scientific evidence has shown that consuming oolong may help reduce body fat in people who are already overweight or obese. The tea is also believed to have cholesterol-lowering properties and animal studies have shown it to reduce triglyceride levels.
Chamomile is an herbal tea. It does not contain caffeine like black tea or green tea, so it does not provide stimulation in the same manner as those traditional teas. Instead, chamomile is widely recognized as a calming tea.
There is some scientific evidence to support the use of chamomile tea for anxiety and insomnia. There is also some limited clinical evidence that it can help to reduce muscle spasms, although more research is needed to confirm this benefit.
Chamomile tea historically has been used topically as an antiseptic to treat skin ulcers or even to treat hemorrhoids. But no clinical trials have been conducted on humans to prove that it will work.
Side effects from chamomile tea may include redness or swelling in people who are hypersensitive or allergic to the plant (especially those who are allergic to ragweed or chrysanthemums).