However, they added, the results might be different with another energy drink or a larger group of volunteers.įollow me on Twitter and “like” Los Angeles Times Science & Health on Facebook. The increases in blood pressure and norepinephrine after consuming an energy drink may make people more vulnerable to cardiovascular problems, they wrote in a study published online Sunday by the Journal of the American Medical Assn. Despite being approved as safe by the FDA, this artificial ingredient has been proven carcinogenic in several studies. Like all artificial sweeteners, safety is a concern. This sweetener is 180-200 times sweeter than table sugar. None of those stressors had a discernible effect.Įven so, the findings caused the researchers to fret. Acesulfame Potassium (Acesulfame K or Ace K) is an artificial sweetener with zero calories. Rockstar Rockstar, Pure Zero - Energy Drink, Sugar Free, Fruit Punch. To see whether stressful situations would bolster the energy drink’s effects, the researchers asked the volunteers to answer math questions, squeeze a hand grip or submerge a hand in ice water for two minutes. Rockstar Rockstar, Pure Zero - Energy Drink, Sugar Free, Silver Ice. Total Caffeine from All Sources: 160 mg per can. Not available, Rockstar Pure Zero Calorie Silver Ice Energy Drink. That compares with an increase from 139.9 to 178.6 pg/mL after finishing the placebo drink. Not available, Rockstar Pure Zero Calorie Silver Ice Energy Drink. After consuming the real energy drink, the average amount of norepinephrine rose from 149.8 to 249.8 picograms per milliliter of blood. The biggest difference was in blood levels of norepinephrine, a precursor of epinephrine (a.k.a.

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