Coffee is one of the most frequently consumed beverages worldwide. In the United States, about 75% of adults drink coffee, and 50% drink it daily (1). Coffee is a major source of caffeine, with wide variation in the amount among different types of coffee (8 mg of caffeine per fluid ounce of instant coffee, 12 mg per fluid ounce of brewed or drip coffee, and 64 mg per fluid ounce of espresso). In addition, coffee contains several bioactive substances, including polyphenols, diterpenes, and melanoidins, also with wide variability depending on the blend and the roasting and brewing methods. Adding sugar, ...
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Author, Article, and Disclosure Information
Eliseo Guallar,
From Johns Hopkins University Bloomberg School of Public Health and Johns Hopkins University School of Medicine, Baltimore, Maryland.
Disclosures: Authors have disclosed no conflicts of interest. Forms can be viewed at www.acponline.org/authors/icmje/ConflictOfInterestForms.do?msNum=M17-1503.
Corresponding Author: Eliseo Guallar, MD, DrPH, Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, 2024 East Monument Street, Room 2-645, Baltimore, MD 21205; e-mail, eguallar@jhu.
Current Author Addresses: Dr. Guallar: Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, 2024 East Monument Street, Room 2-645, Baltimore, MD 21205.
Dr. Blasco-Colmenares: Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, 2024 East Monument Street, Baltimore, MD 21205.
Dr. Arking: McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, 733 North Broadway, MRB 459, Baltimore, MD 21205.
Dr. Zhao: Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University Bloomberg School of Public Health, 2024 East Monument Street, Room 2-635, Baltimore, MD 21205.
This article was published at Annals.org on 11 July 2017.
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