|Common Sources of Caffeine||Serving Size||Average Caffeine Content (mg)|
|NoDoz (maximum strength)||1 tablet||200|
|Excedrin (extra strength)||2 tablets||130|
|Coffee, brewed||16 ounces||133|
|Espresso coffee||2 ounces||150|
|Coffee, instant||8 ounces||148|
|Arizona Iced Tea, black||16 ounces||30|
|Black tea||8 ounces||30-80|
|Mountain Dew||12 ounces||54|
|Dr. Pepper, regular or diet||12 ounces||41|
|7-UP or Diet 7-UP||12 ounces||0|
|Jolt Energy Drink||23.5 ounces||280|
|5-hour Energy||1.9 ounces||208|
|Monster Energy||16 ounces||160|
|Red Bull||8.4 ounces||80|
|Hershey's Special Dark||1.5 ounce||20|
|Hershey's chocolate bar||1.6 ounces||9|
|Hot cocoa||1 tbs.||8|
American Heart Association http://www.heart.org
International Food Information Council http://www.foodinsight.org
Dietitians of Canada http://www.dietitians.ca
Health Canada http://www.hc-sc.gc.ca
Caffeine. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated January 18, 2013. Accessed March 11, 2014.
Caffeine and heart disease. American Heart Association website. Available at: http://www.heart.org/HEARTORG/GettingHealthy/NutritionCenter/HealthyDietGoals/Caffeine-and-Heart-Disease%5FUCM%5F305888%5FArticle.jsp. Updated February 21, 2012. Accessed March 11, 2014.
Caffeine content of food & drugs. Center for Science in the Public Interest website. Available at: http://www.cspinet.org/new/cafchart.htm. Updated December 2012. Accessed March 11, 2014.
Cornelis MC, El-Sohemy A, Kabagambe EK, Campos H. Coffee, CYP1A2 genotype, and risk of myocardial infarction. JAMA. 2006;295(10):1135-1141.
Lopez-Garcia E, van Dam RM, Willett WC, et al. Coffee consumption and coronary heart disease in men and women: a prospective cohort study. Circulation. 2006;113(17):2045-2053.
Neurodegenerative disorders: coffee and age-related cognitive decline. Coffee & Health website. Available at: http://www.coffeeandhealth.org/coffee-and-health-topics/coffee-consumption-and-neurodegenerative-disorders/coffee-and-age-related-cognitive-decline/. Accessed March 11, 2014.
ST-elevation myocardial infarction (STEMI). EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated February 11, 2014. Accessed March 11, 2014.