Coffee, caffeine and health:
there are still many myths to discreditDoubts and prejudices emerge from a survey on "Coffee, caffeine and health", in which 993 family physicians and 1897 specialists (hospital and private consultants) took part.
Their answers were in majority correct regarding the contents of caffeine in a cup of espresso coffee (almost all answer 40 mg., but only some know that the same quantity of mocha can contain up to 80 mg.), and only a few know that the American filtered coffee contains approx. 120 mg. of caffeine.
This incomplete information could become the base of incorrect advice to patients, when not speaking only about coffee, but about caffeine content generally.
The scientific community agrees on the quantity of caffeine that can be introduced in a day, indicating 300 mg./die of caffeine for an adult, that is to say, approx. 4-5 mg. of caffeine per kg of the body weight, per day, for example: a man weighing 70 kg. = 4.5 x 70 = 315 mg. To have an idea as to what this means in terms of doses, the table below shows the quantities of caffeine contained in some more common beverages/foods: