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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 ...
The risk was reduced by 48.1% if they had three cups a day, or 40.7% if they had 200 to 300 milligrams of caffeine daily, compared with people who didn’t drink or drank less than one cup, Ke said.
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]
However, only a small percentage of coffee consumers know that this coffee type has a naturally lower caffeine count than most other popular coffees. Because Arabica has an approximately 40-50% lower caffeine count than other coffees, the average person can safely consume two cups of non-decaf coffee with the same effect as consuming one cup of ...
Drinking more than four cups of caffeinated coffee in a day was associated with a lower risk for head and neck cancer, oral cavity cancer, and oropharyngeal cancers compared to not drinking coffee.
One study comparing various home-prepared samples came to the result that regular instant coffee (not decaffeinated) has a median caffeine content of 66 mg per cup (range 29–117 mg per cup), with a median cup size of 225 ml (range 170–285 ml) and a caffeine concentration of 328 μg/mL (range 102–559 μg/mL). [24]
In other words, fewer than 7 ounces of coffee can go toward a person's daily water intake (and remember, a cup is considered 8 ounces.) Coffee's dehydrating effects complicate matters."Those who ...
[2] The chemical complexity of coffee is emerging, especially due to observed physiological effects which cannot be related only to the presence of caffeine. Moreover, coffee contains an exceptionally substantial amount of antioxidants such as chlorogenic acids, hydroxycinnamic acids, caffeine and Maillard reaction products, such as melanoidins ...