Tea is one of the more commonly consumed beverages worldwide, and it's also one of the more extensively researched
due to its potential health benefits.

Tea leaves consist of thousands of bioactive compounds which have been identified and researched. Although many of the compounds serve as antioxidant flavonoids, not all of the benefits are believed to be entirely from antioxidant activity.

Tea for Hearth Health

Many studies indicate that tea supports heart health as well as healthy blood pressure, and seems to be linked to a reduced cardiovascular disease risk, including heart attack and stroke.

Tea for Weight Loss

Studies on tea catechins show that they could be beneficial to maintain body weight or promote weight loss. Researchers have discovered that 24-hour energy expenditure as well as fat oxidation increased when individuals drank green tea and caffeine. Study results indicate that the caloric expenditure increase is the same as about 100 calories for a 24-hour period. Green tea and caffeine also seem to boost fat oxidation over 24 hours by about 16% or 0.02 grams per mg catechins. Researchers have also determined that individuals drinking green tea and caffeine lost about 2.9 pounds in 12 weeks, while sticking to their regular diet.

Tea for Osteoporosis

Researchers have performed studies with postmenopausal women having low bone mass to determine if adding green tea flavanols will help improve bone health markers as well as muscle strength. At the end of the six-month study the researchers discovered that 500 mg green tea extract (equal to 4-6 servings of green tea every day) improved markers for the formation of bone, reduced inflammation markers and also increased muscle strength.

Tea for Mental Sharpness

Drinking black tea improves attention as well as alertness. In a study, individuals consuming tea had been more precise on an attention task as well as feeling more alert than individuals drinking a placebo. This study supports earlier research on the mental benefits of tea.

Health Benefits of Tea:
Green, Black, and White Tea

Tea is a name given to a lot of brews, but purists consider only green tea, black tea, white tea, oolong tea, and pu-erh tea the real thing. They are all derived from the Camellia sinensis plant, a shrub native to China and India, and contain unique antioxidants called flavonoids. The most potent of these, known as ECGC, may help against free radicals that can contribute to cancer, heart disease, and clogged arteries.

All these teas also have caffeine and theanine, which affect the brain and seem to heighten mental alertness.

The more processed the tea leaves, usually the less polyphenol content. Polyphenols include flavonoids. Oolong and black teas are oxidized or fermented, so they have lower concentrations of polyphenols than green tea; but their antioxidizing power is still high.

Here's what some studies have found about the potential health benefits of tea:

Green Tea

Made with steamed tea leaves, it has a high concentration of EGCG and has been widely studied. Green tea’s antioxidants may interfere with the growth of bladder, breast, lung, stomach, pancreatic, and colorectal cancers; prevent clogging of the arteries, burn fat, counteract oxidative stress on the brain, reduce risk of neurological disorders like Alzheimer’s and Parkinson’s diseases, reduce risk of stroke, and improve cholesterol levels.

Black Tea

Made with fermented tea leaves, black tea has the highest caffeine content and forms the basis for flavored teas like chai, along with some instant teas. Studies have shown that black tea may protect lungs from damage caused by exposure to cigarette smoke. It also may reduce the risk of stroke.

White Tea

Uncured and unfermented. One study showed that white tea has the most potent anticancer properties compared to more processed teas.

Oolong Tea

In an animal study, those given antioxidants from oolong tea were found to have lower bad cholesterol levels. One variety of oolong, Wuyi, is heavily marketed as a weight loss supplement, but science hasn’t backed the claims.

Pu-erh tea

Made from fermented and aged leaves. Considered a black tea, its leaves are pressed into cakes. One animal study showed that animals given pu-erh had less weight gain and reduced LDL cholesterol.

* Source for Tea info-graphic, Tea for Heart Health, Tea for Weight Loss, Tea for Osteoporosis and Tea for Mental Sharpness: "The Health Benefits of Tea", "

*Source for Tea Picture: Tea_Wikipedia

*Source for "Health Benefits of Tea: Green, Black, and White Tea"- WebMD- Types of Teas and Their Health Benefits