International Journal of
Nutrition and Metabolism

  • Abbreviation: Int. J. Nutr. Metab.
  • Language: English
  • ISSN: 2141-2332
  • DOI: 10.5897/IJNAM
  • Start Year: 2009
  • Published Articles: 113

Full Length Research Paper

Quantitative estimation of the caffeine content in some energy drinks on the Ghanaian market

Michael Worlako Klu
  • Michael Worlako Klu
  • Department of Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Central University, P. O. Box 2305, Tema, Ghana.
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David Ntinagyei Mintah
  • David Ntinagyei Mintah
  • Department of Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Central University, P. O. Box 2305, Tema, Ghana.
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Bright Selorm Addy
  • Bright Selorm Addy
  • Department of Pharmacology and Toxicology, School of Pharmacy, Central University, P. O. Box 2305, Tema, Ghana.
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John Antwi Apenteng
  • John Antwi Apenteng
  • epartment of Pharmaceutics, School of Pharmacy, Central University, P. O. Box 2305, Tema, Ghana.
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Gloria Obeng
  • Gloria Obeng
  • Department of Medicinal Chemistry and Pharmacognosy, School of Pharmacy, Central University, P. O. Box 2305, Tema, Ghana.
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  •  Received: 24 April 2018
  •  Accepted: 17 May 2018
  •  Published: 31 May 2018

Abstract

The consumption patterns of energy drinks in the Tema Municipality of the Greater-Accra region of Ghana were investigated via a cross sectional survey and the caffeine contents of these energy drinks were determined by iodimetry. The survey showed that more males than females consume energy drinks.  Five types of energy drinks; Lucozade (LU), Rush (RU), Red Bull (RB), Five Star (FS) and Monster (MT) were revealed. MT was not available on the market at the time of the survey. RU was the most consumed whereas RB was the least consumed. LU had a higher consumption rate than FS. The energy drinks were normally taken for enhanced performance. The caffeine contents of the various brands of energy drinks were as follows: LU- 0.192 mg/ml, RU- 0.245 mg/ml, FS- 0.139 mg/ml and RB- 0.089 mg/ml. Most of the correspondents (148 out of 156) consumed one to three cans or bottles of energy drinks per day and this led to an intake of caffeine which was less than the recommended daily allowance of 400 mg. Some, however, ingested more than 400 mg and experienced some side effects.
 
Key words: Energy drinks, caffeine, cross sectional survey, iodimetry.