It was published in the August issue of the Journal of Food Science.Ĭaffeine content of well-known national brands include:īy comparison, according to the American Beverage Association website, a 340-millilitre cup of coffee has between 156 and 288 milligrams of caffeine, and the same amount of tea has 30-135 milligrams.īell said the data provided by manufacturers of national brand soft drinks was consistent with the findings of his study. Their study analyzed the caffeine contents of 56 national brand and 75 store brand carbonated drinks. They said previous research showed that only eight per cent of adults were able to differentiate between the taste of caffeinated and caffeine-free colas. It is commonly sought out for its stimulatory effect, and beverage companies say the slightly bitter substance is also an element in their flavour formulas.īell and Chou say the buzz caused by caffeine is its main draw. While caffeine occurs naturally in some products, like coffee and tea, it's an additive in soft drinks. Most national brands also provide lists of the amount of caffeine in their products on their websites. said they are phasing in new labels that include caffeine content. The Coca-Cola Co., based in Atlanta, and Purchase, N.Y.-based PepsiCo Inc. Coca-Cola, PepsiCo phasing in caffeine labels The FDA has received a number of petitions to include caffeine content labelling on products, including the 1997 request from the consumer group, according to Mike Herndon, another FDA spokesman. "People should be able to monitor their intake and to make informed choices because it can affect their sleep and can make some people jittery," Schardt said. The study by Bell and co-author Ken-Hong Chou found caffeine content in 340-millilitre sodas ranged from 4.9 milligrams for a store brand of cola to 74 milligrams in Vault Zero, a citrus drink.ĭavid Schardt, senior nutritionist at the Center for Science in the Public Interest, said the Washington-based nonprofit first asked the FDA 10 years ago to require that food and drink labels show the caffeine content. The federal agency recommends that healthy adults should consume a maximum of 450 mg of caffeine daily, the equivalent of three 237 ml cups of brewed coffee. Health Canada says minor side effects of caffeine range from alertness and improved concentration to insomnia, headaches, irritability and nervousness. In Canada, caffeine cannot be added to clear sodas or juices. For a 340-millilitre soft drink, that's about 72 milligrams of caffeine. FDA spokeswoman Veronica Castro said a 0.02 per cent caffeine content is generally recognized as safe for cola-type beverages. The Food and Drug Administration does not limit the amount of caffeine in foods. "I don't really take a stand on whether caffeine is good or bad, but I do think the consumer has a right to know what they're getting," said Leonard Bell, one of two food researchers who conducted the study at Auburn University in Alabama. The study's researchers, along with consumer advocates, say labels on packaging should give the caffeine content to help buyers make informed choices. The research also found that caffeine content can vary widely from brand to brand, and even within a brand. new study shows that citrus-flavoured sodas often have a higher caffeine content than the most popular colas.
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