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Specifically, coffee drinkers had the lowest risk—nearly 50% reduction in risk—while people who consumed 200 to 300 mg of caffeine from tea or a mix of both beverages were about 40% less ...
Beverages containing caffeine include coffee, tea, soft drinks ("colas"), energy drinks, other beverages. According to a 2020 study in the United States, coffee is the major source of caffeine intake in middle-aged adults, while soft drinks and tea are the major sources in adolescents. [8]
The following is a notable list of energy drinks, with a few coffee variants, and some soft drinks such as Coca-Cola, Mountain Dew, and Pepsi listed for comparison, and marked in a different color. The caffeine content in coffee and tea varies, depending on how the coffee beans were roasted, among other factors.
Tea contains more caffeine than coffee by dry weight. A typical serving, however, contains much less, since less of the product is used as compared to an equivalent serving of coffee. Also contributing to caffeine content are growing conditions, processing techniques, and other variables. Thus, teas contain varying amounts of caffeine. [243]
A new study found that drinking certain amounts of caffeinated coffee and tea was linked to a decreased risk for head and neck cancer compared to not drinking these beverages.
A regular cup of coffee typically has anywhere from 113 to 247 milligrams (mg) of caffeine, depending on how strong the brew is. On the other hand, matcha has about 19 to 45 milligrams of caffeine ...
The study found any caffeine intake in general reduced risks of CM, although did not find strong evidence that tea reduced the risk of stroke and Type 2 Diabetes. By contrast, a 2011 review had found that drinking one to three cups of coffee per day may pose a slightly increased risk of developing hypertension. [22]
A standard cup of coffee can contain anywhere from 95 to 200 mg of caffeine. The FDA cites 400 mg of caffeine per day "as an amount not generally associated with dangerous, negative effects." But ...