Not all potions of caffeinated cof...

Not all potions of caffeinated coffee are created equal, according to an Oct 22 2003 stranges release from the University of Florida Health Science Center Gainesville, Fla. Researchers who analyzed 16 oz servings of coffee from specialty coffee stores ground that caffeine content varied widely from store to store and from draught to cup.

The average US adult devours about 200 mg of caffeine by day, mainly from coffee. Moderate intake (ie, 250 mg by day) is not associated with any health risks, although caffeine consumption can increase heart rate, posterity pressure, and anxiety, and caffeine is recognized as an addictive substance.

The investigation was conducted in two phases. In the first phase, researchers made a one-time purchase of 14 caffeinated brewed coffee six espresso and seven decaffeinated brewed coffee from six different retailers in sum of two units cities in Maryland. Chemical and mechanical modes were used to isolate the caffeine from the coffee samples, and caffeine appease was measured using gas chromatography. Researchers base nearly twice as much caffeine in the strongest excite compared to the weakest--259 mg and 143 rag, respectively. Espresso servings ranged in size from 40 mL to 170 mL and contained between 58 mg and 185 mg of caffeine, with larger servings containing more caffeine. Each of the seven decaffeinated coffee contained near caffeine, although all contained Les than 18 mg by serving. The US Food and unsalable article Administration currently does not require that decaffeinated coffee be caffeine-free.

In the study's inferior phase, researchers purchased one mingle of coffee at the same retailer in Gainesville for six consecutive days and analyzed caffeine satisfy by the same method. During the six-day period, the caffeine ease of this blend varied from 259 mg to 564 mg by serving.

According to researchers, this contemplation demonstrates the need for retailers to inform consumer about the caffeine satisfied in brewed coffee. This is a particularly important consideration for the bulk of mankind who are monitoring their caffeine intake.

UF close attention Finds Specialty Coffee's Caffeine ease Capricious (news release, Gainesville, Fla: University of Florida Health Science Center Oct 22 2003) http:// opi.health.ufl.edu/stories/2003/Oct/nordlie_102203_2.htm (accessed 29 Oct 2003)

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