If you're like most adults, caffeine is a part of your daily routine. But do you know the caffeine content of your favorite drink?

You may want to take a look at just how much caffeine you get in a typical day, especially if you're bothered by headaches, restlessness or anxiety. If your caffeine habit totals more than 500 milligrams (mg) a day, you may want to consider cutting back.

With the growing popularity of energy drinks, many parents have become concerned about how much caffeine their kids are getting. The American Academy of Pediatrics recommends that adolescents get no more than 100 mg of caffeine a day. Younger children shouldn't drink caffeinated beverages on a regular basis.

Check the charts below to see the caffeine content in popular drinks, sweets and medications. One note about the numbers: Use them as a guide. The actual caffeine content of the same coffee drink can vary from day to day — even at the same coffee shop — because of various factors, such as roasting and grinding as well as brewing time. The caffeine content of tea also is affected by how long it's brewed.

Type of coffee Size* Caffeine✝

Adapted from Journal of Food Science, 2010; Pediatrics, 2011; USDA National Nutrient Database for Standard Reference, Release 26; Journal of Analytical Toxicology, 2006; Starbucks, 2014; Food and Chemical Toxicology, 2014; Keurig, 2014

*Sizes are listed in fluid ounces (oz.) and milliliters (mL).

✝Caffeine is listed in milligrams (mg).

Brewed 8 oz. (237 mL) 95-200 mg
Brewed, decaffeinated 8 oz. (237 mL) 2-12 mg
Brewed, single-serve varieties 8 oz. (237 mL) 75-150 mg
Brewed, single-serve varieties, decaffeniated 8 oz. (237 mL) 2-4 mg
Espresso, restaurant-style 1 oz. (30 mL) 47-75 mg
Espresso, restaurant-style, decaffeinated 1 oz. (30 mL) 0-15 mg
Instant 8 oz. (237 mL) 27-173 mg
Instant, decaffeinated 8 oz. (237 mL) 2-12 mg
Specialty drink (latte or mocha) 8 oz. (237 mL) 63-175 mg
Type of tea Size* Caffeine✝

Adapted from Journal of Food Science, 2010; Pediatrics, 2011; Journal of Analytical Toxicology, 2008; USDA National Nutrient Database for Standard Reference, Release 26; Journal of Analytical Toxicology, 2006; Starbucks, 2014; Food and Chemical Toxicology, 2014

*Sizes are listed in fluid ounces (oz.) and milliliters (mL).

✝Caffeine is listed in milligrams (mg).

Brewed tea    
Black tea 8 oz. (237 mL) 14-70 mg
Black tea, decaffeinated 8 oz. (237 mL) 0-12 mg
Green tea 8 oz. (237 mL) 24-45 mg
Iced tea    
Instant, prepared with water 8 oz. (237 mL) 11-47 mg
Ready-to-drink, bottled 8 oz. (237 mL) 5-40 mg
Type of soft drink Size* Caffeine✝

Adapted from Journal of Food Science, 2010; Pediatrics, 2011; USDA National Nutrient Database for Standard Reference, Release 26; Journal of Food Science, 2007; Journal of Analytical Toxicology, 2006; Pepsico, 2014; Coca-Cola, 2014; Dr Pepper, 2014; A&W Root Beer; 7UP

*Sizes are listed in fluid ounces (oz.) and milliliters (mL).

✝Caffeine is listed in milligrams (mg).

A&W Root Beer 12 oz. (355 mL) 0 mg
Barq's Root Beer 12 oz. (355 mL) 16-18 mg
Coca-Cola 12 oz. (355 mL) 23-35 mg
Diet Coke 12 oz. (355 mL) 23-47 mg
Diet Pepsi 12 oz. (355 mL) 27-37 mg
Dr Pepper, regular and diet 12 oz. (355 mL) 36-42 mg
Mtn Dew, regular and diet 12 oz. (355 mL) 42-55 mg
Mug Root Beer, regular and diet 12 oz. (355 mL) 0 mg
7UP 12 oz. (355 mL) 0 mg
Pepsi 12 oz. (355 mL) 32-39 mg
Sierra Mist, regular and diet 12 oz. (355 mL) 0 mg
Sprite, regular and diet 12 oz. (355 mL) 0 mg
Type of energy drink Size* Caffeine✝

Adapted from Journal of Food Science, 2010; American Academy of Pediatrics, 2011; USDA National Nutrient Database for Standard Reference, Release 26; Consumer Reports, 2014; Mayo Clinic Proceedings, 2010; 5-Hour Energy, 2014; Pepsico, 2014; Full Throttle; RedBull

*Sizes are listed in fluid ounces (oz.) and milliliters (mL).

✝Caffeine is listed in milligrams (mg).

Amp, regular or sugar-free 8 oz. (237 mL) 71-74 mg
5-Hour Energy shot 2 oz. (60 mL) 200-207 mg
Full Throttle, regular or sugar-free 8 oz. (237 mL) 70-100 mg
Red Bull, regular or sugar-free 8.4 oz. (248mL) 75-80 mg
Rockstar, regular or sugar-free 8 oz. (237 mL) 79-80 mg
Type of product Size Caffeine*

Adapted from Pediatrics, 2011; USDA National Nutrient Database for Standard Reference, Release 26; Food and Drug Administration, 2014; Vroom Foods, Inc., 2014; NoDoz, 2014; Excedrin, 2014; Jolt, 2014

*Caffeine is listed in milligrams (mg).

Medications    
Excedrin Extra Strength 1 tablet 65 mg
NoDoz Max Strength 1 tablet 200 mg
Sweets    
Chocolate chips, semisweet 1 cup (168 grams) 104 mg
Dark chocolate-coated coffee beans 28 pieces 336 mg
Energy mints 2 mints 95-200 mg
May 13, 2014