What Is Caffeine?
Caffeine is a chemical found in plants and stimulates
the central nervous system, heart, muscles, and the centers that control blood
pressure. The effects of caffeine can last in the body for 5 hours or more and
the effects can be felt within 15 minutes of consumption.
Caffeine is most commonly found in beverages such as coffee,
tea, sodas, and energy drinks. Caffeine is also found in other products
including chocolate, pain and allergy medications, and No Doz (an over-the-counter
medication to keep you awake).
Though many believe moderate caffeine consumption is safe,
excessive consumption could cause anxiety, headache, agitation, insomnia,
nervousness and restlessness, stomach irritation, increased heart rate and
respirations, chest pain, irregular heartbeats, and ringing in the ear.
The following is a list of products containing caffeine and
the average amount of caffeine per serving.
Average:
|
|
Cocoa beverage (6 oz)
|
4 mg
|
Chocolate flavored syrup (2 tbs)
|
5 mg
|
Chocolate milk (8 oz)
|
8 mg
|
Milk chocolate (1 oz)
|
7 mg
|
Semi-sweet chocolate (1 oz)
|
18 mg
|
Unsweetened chocolate (1 oz)
|
25 mg
|
Coffee:*
|
|
Brewed (6 oz)
|
100 mg
|
Instant (1 rounded tsp)
|
57 mg
|
Brewed decaffeinated (6 oz cup)
|
3 mg
|
Instant decaffeinated (1 rounded tsp)
|
2 mg
|
Cappuccino (4 oz)
|
100 mg
|
Espresso (2 oz)
|
100 mg
|
Latte (single)
|
50 mg
|
Mocha (single)
|
55 mg
|
Other Beverages (12-oz servings):
|
|
Coca-Cola, Diet Coke
|
46 mg
|
Dr. Pepper (regular & sugar-free)
|
40 mg
|
Mello Yello
|
52 mg
|
Mountain Dew
|
54 mg
|
Pepsi-Cola, Diet Pepsi
|
38 mg
|
Red Bull (8.2 oz)
|
80 mg
|
5-Hour Energy
|
138 mg
|
Monster Energy
|
160 mg
|
Tea (5-oz cup):
|
|
Brewed, green or black, U.S. brands (3 minutes)
|
40 mg
|
Brewed, imported brands
|
60 mg
|
Instant (1 tsp)
|
30 mg
|
Iced (8 oz)
|
25 mg
|
Decaffeinated
|
5 mg
|
Non-Prescription Drugs:**
|
|
Caffeine Tablets:
|
|
No-Doz
|
100 mg
|
Vivarin
|
200 mg
|
Pain Relievers (per tablet):
|
|
Anacin
|
32 mg
|
Excedrin
|
65 mg
|
Midol (maximum strength)
|
60 mg
|
References
Find
a vitamin or supplement: Caffeine (n.d.). WebMD.
Retrieved March 14, 2014 from http://www.webmd.com/vitamins-supplements/ingredientmono-979-CAFFEINE.aspx?activeIngredientId=979&activeIngredientName=CAFFEINE
M
Student Life (n.d.). University of
Michigan. Retrieved March 14, 2014 from http://www.uhs.umich.edu/caffeine
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