Editing Caffeinated drink (section)

===Soft drinks and energy drinks===
[[File:Cocaine Energy Drink (7983571911).jpg|thumb|100px|Cocaine Energy Drink contains 280 mg caffeine.<ref>{{cite web |title=Doctors Warn Against "Cocaine" Energy Drink |url=https://toronto.citynews.ca/2007/01/12/doctors-warn-against-cocaine-energy-drink/ |website=toronto.citynews.ca}}</ref>]]

Caffeine is also a common ingredient of [[soft drink]]s, such as [[cola]], originally prepared from [[kola nut]]s. Soft drinks typically contain 0 to 55 milligrams of caffeine per 12 ounce serving.<ref>{{cite web|title=Nutrition and healthy eating|url=http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/caffeine/art-20049372?pg=2|website=Mayo Clinic|access-date=18 November 2015|archive-date=22 November 2015|archive-url=https://web.archive.org/web/20151122063906/http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/in-depth/caffeine/art-20049372?pg=2|url-status=live}}</ref> By contrast, [[energy drink]]s, such as [[Red Bull]], can start at 80 milligrams of caffeine per serving. The caffeine in these drinks either originates from the ingredients used or is an additive derived from the product of [[decaffeination]] or from chemical synthesis. Guarana, a prime ingredient of energy drinks, contains large amounts of caffeine with small amounts of theobromine and theophylline in a naturally occurring [[slow-release]] [[excipient]].<ref>{{cite journal|vauthors=Bempong DK, Houghton PJ, Steadman K |year=1993 |title=The xanthine content of guarana and its preparations |journal=Int J Pharmacog |issn=0925-1618 |volume=31 |issue=3 |pages=175–181 |doi=10.3109/13880209309082937|url=https://espace.library.uq.edu.au/view/UQ:7058c79/Steadman1993xanthine.pdf }}</ref>