Sep 24, 2008 8:21 pm US/Eastern
List Of Caffeine Levels For Energy Drinks
Dr. Griffiths and his colleagues at Johns Hopkins University contacted more than two dozen makers of energy drinks, asking for caffeine content. Here are some of the findings:
(The caffeine content is in milligrams per serving. Although serving sizes vary, Griffiths contends that most people will drink the entire can, whatever the number of ounces.)
· Red Bull: 80 milligrams per 8.3-ounce serving
· Tab Energy: 95 mg per 10.5-oz serving
· Monster and Rockstar: 160 mg per 16-oz serving
· No Fear: 174 mg per 16-oz serving
· Fixx: 500 per 20-oz serving
· Wired X505: 505 mg per 24-oz serving
In comparison, according to Griffiths:
· Brewed coffee: 200 milligrams per 12-oz serving
· Instant coffee: 140 mg per 12-oz serving
· Brewed tea: 80 mg per 12-oz serving
· Mountain Dew: 54 mg per 12 oz. serving
· Dr. Pepper: 41 mg per 12-oz serving
· Pepsi Cola: 38 mg per 12-oz serving
· Coca-Cola Classic: 34.5 mg per 12-oz serving
· Canned or bottled tea: 20 mg per 12-oz serving
Some of the energy drinks have lower caffeine contents, Griffith says. Among the lower doses:
· Bomba Energy has 75 mg per 8.4-oz serving
· Whoop Ass has 50 mg per 8.5-oz serving
