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" Which soda packs the bigger buzz \u2014 a cola drink like Coke or a citrusy choice like Mello Yello? Surprise: It&amp;#039;s not the Coke, which has 15.6 fewer milligrams of caffeine per 12-ounce can than Mello Yello (33.9 versus 49.5). When Auburn University researchers tested 131 national and private-label brands of soft drinks, they found that while caffeine levels varied widely, citrus-flavored drinks generally had more of the stimulant than colas. Another surprise: You may have only your jitters to alert you to the ingredient. Soft drink manufacturers are not required to list caffeine content on the label, and while a few do, most don&amp;#039;t. See how your favorite soft drink scores in the charts on the following pages:    National-Brand Cola   Caffeine (mg/12 oz)     Pepsi One   57.1      Diet Cheerwine   48.1      Tab   48.1      Cheerwine   47.5      Diet RC   47.3      Diet Coke   46.3      Diet Coke with Lime   46.3     RC Cola   45.2      Shasta Cola   42.9      Faygo Cola   41.7     Diet Cherry Pepsi   40.5      Cherry Pepsi   39.7      Pepsi   38.9      Pepsi with Lime   38.4      Coke Black Cherry Vanilla   35.1     Diet Coke Black Cherry Vanilla   36.8     Diet Pepsi   36.7      Coke Zero    35.8      Diet Cherry Coke   35.0      Cherry Coke   34.4      Coca-Cola C2   34.4      Diet Coke with Splenda   34.4      Coca-Cola   33.9     Coke with Lime   33.6      Red Rock Cola   26.1      Ritz Cola   10.3     Next: Private-Label/Store-Brand Cola    Private-Label/Store-Brand Cola   Caffeine (mg/12 oz)     Big Fizz Cola (Rite Aid)   46.4      Diet Big Fizz Cola (Rite Aid)   61.9     Big K Cherry Cola (Kroger)   43.0      Diet Big K Cherry Cola (Kroger)   39.9     Walgreens Cola   39.2      Walgreens Diet Cola   45.0     Big Gulp Cola (7-Eleven)   38.6      Big Gulp Diet Cola (7-Eleven)   30.0      Chek Vanilla Cola (Winn-Dixie)   36.3      Chek Diet Vanilla Cola (Winn-Dixie)   28.9      Bubba Cola (Save-a-Lot)   35.4      Diet Bubba Cola (Save-a-Lot)   42.0      Big K Cola with Lime (Kroger)   30.3      CloverValley Cola (Dollar General)   28.8      Diet CloverValley Cola (Dollar General)   22.9      Food Lion Cola (Food Lion)   25.3     Diet Food Lion Cola (Food Lion)   11.9      Laura Lynn Cola (Ingle&amp;#039;s)   24.4      Diet Laura Lynn Cola (Ingle&amp;#039;s)   11.3      Superchill Cola (Supervalu)   24.2      Diet Superchill Cola (Supervalu)   34.5      Publix Cola (Publix)   23.1      Diet Publix Cola (Publix)   35.2      Rally Cola (Bruno&amp;#039;s)   13.3      Diet Rally Cola (Bruno&amp;#039;s)   13.0      Piggly Wiggly Cola (Piggly Wiggly)   12.7      Diet Piggly Wiggly Cola (Piggly Wiggly)   11.9     Sam&amp;#039;s Cola (Wal-Mart)   12.7      Diet Sam&amp;#039;s Cola (Wal-Mart)   13.1     Publix Cherry Cola (Publix)   12.4      Laura Lynn Cherry Cola (Ingle&amp;#039;s)   8.4      Laura Lynn Diet Cherry Cola (Ingle&amp;#039;s)   n/a     IGA Cola (IGA)   4.9      Diet IGA Cola (IGA)   10.3      Chek Mate Cola (Winn-Dixie)   n/a     Diet Chek Mate Cola (Winn-Dixie)   26.2      Chek Diet Cola with Lime (Winn-Dixie)   45.8     Next: Other National-Brand Soft Drinks    Other National-Brand Soft Drinks   Caffeine content (mg/12 oz)     Diet Dr. Pepper   44.1      Dr. Pepper   42.6      Diet Dr. Pepper Berries &amp;amp;amp; Cream   42.0      Diet Dr. Wham   41.9      Dr. Wham   41.6      Pibb Zero   41.2      Diet Cherry Vanilla Dr. Pepper   40.1      Cherry Vanilla Dr. Pepper   39.4      Vault Zero   74.0      Diet SunDrop   71.5      SunDrop   64.7      Diet Mountain Dew Code Red   55.4      Diet Mountain Dew   55.2      Mountain Dew    54.8     Mountain Dew Code Red   54.3      Mello Yello   49.5      Faygo Moon Mist   19.7      Diet Sunkist   41.5      Sunkist   40.6      Big Red   34.0      A&amp;amp;amp;W Cream Soda   28.6      Barq&amp;#039;s Root Beer   22.4     Next: Other Private-Label/Store-Brand Soft Drinks    Other Private-Label/Store-Brand Soft Drinks   Caffeine content (mg/12 oz)     Dr IGA (IGA)   59.8     Diet Dr Pop (Save-a-Lot)   56.8     Dr Pop (Save-a-Lot)   47.5     Dr K (Kroger)   41.2     Diet Dr K (Kroger)   40.7     Dr Topper (Dollar General)   34.0     Dr Publix (Publix)   31.6     Dr Bob (Bruno)   31.3     Mr. Pig (Piggly Wiggly)   31.2     Diet Dr Bob (Bruno)   30.9     Dr Thunder (Wal-Mart)   30.6     Dr Chill (Supervalu)   29.9     Diet Dr Thunder (Wal-Mart)   29.9     Dr Chek (Winn-Dixie)   24.4     Diet Dr Chek (Winn-Dixie)   22.3     Dr Lynn (Ingle&amp;#039;s)   19.3     Dr Perky (Food Lion)   18.8     Diet Dr Lynn (Ingle&amp;#039;s)   18.2     Chek Kountry Mist (Winn-Dixie)   55.1     Ramp Red (Bruno)   54.6     IGA Spring Mist (IGA)   54.2     Publix Citrus Hit (Publix)   54.1     Ramp (Bruno)   53.8     Mountain Chill (SuperValu)   53.5     Chek Red Alert (Food Lion)   53.2     Mountain Holler (Save-a-Lot)   53.1     Mountain Yeller (Piggly Wiggly)   53.1     CloverValleyCitrus Drop (Dollar General)   52     Sam&amp;#039;s Mountain Lightning (Wal-Mart)   46.5     Chek Diet Kountry Mist   46.3     Mountain Lion (Food Lion)   30.9     Laura Lynn Mountain Moon Drops (Ingle&amp;#039;s)   27.5     Big K Citrus Drop    26.2     Big K Diet Citrus Drop   25.1    Next: What About Coffee vs. Tea?   Beverage Caffeine/serving*   Tea 36 mg/6 oz cup   Coffee 71 mg/6 oz cup   Espresso 64 mg/1 oz   *Note: these are USDA values. They can vary GREATLY depending on type of coffee bean.    All tables adapted from Chou and Bell, Journal of Food Science, Vol 72, No 6, 2007. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.goodhousekeeping.com/health/diet-nutrition/a16627/caffeine-content-breakdown-beverages/?src=shelter_footer>