Articles on Tea and Health

Caffeine Content of Tea

How much caffeine is in black, green, or white tea? Learn what determines the caffeine content of different teas, which teas are high and low in caffeine.

Vitamin C Content of Tea

Green teas tend to contain small amounts of vitamin C, whereas black teas tend to contain none. Processing and storage can reduce the Vitamin C content of

Health Benefits of Tea

A brief overview of the health benefits of tea, and exploration of whether certain teas are better for you than others.

Caffeine Addiction, Dependency, and Withdrawal

Caffeine is mildly addictive and causes a physical dependency; caffeine withdrawal can be inconvenient and unpleasant, but tends to only last a few days.

Tea and Iron Absorption

Tea is known to inhibit iron absorption, but this effect is not a matter of concern for normal, healthy adults.

Tea and Weight Loss

Scientific evidence for tea as an aid to weight loss, with discussion of companies that market tea as a weight-loss product.

Bottled Tea

RateTea does not list bottled teas, but we do refer people to companies selling unsweetened bottled iced tea.

Tea and Sleep

There is evidence that tea has sleep benefits, especially when compared to coffee. Herbal teas have diverse effects on sleep.

Tea and Pregnancy

This article summarizes the potential risks and benefits associated with drinking tea or herbal tea during pregnancy.

Caffeine and Dehydration

Caffeine in tea and coffee is often claimed to be a diuretic, leading to dehydration, but research does not back up this view.