Add a Boost with Energy Blend, featuring Taurine
Taurine is a derivative of cysteine, an amino acid which contains a sulfhydryl group. Taurine is one of the few known naturally occurring sulfonic acids. In the strict sense, it is not an amino acid, as it lacks a carboxyl group, but it is often called one, even in scientific literature. It does contain a sulfonate group and may be called an amino sulfonic acid. 
Taurine is regularly used as an ingredient in energy drinks, with many containing 1000 mg per serving, and some as much as 2000 mg. A 2003 study by the European Food Safety Authority found no adverse effects for up to 1,000 mg of taurine per kilogram of body weight per day.
A review published in 2008 found no documented reports of negative or positive health effects associated with the amount of taurine used in energy drinks, concluding that “The amounts of guarana, taurine, and ginseng found in popular energy drinks are far
below the amounts expected to deliver either therapeutic benefits or adverse events”.
 Natural Health Products Ingredients Database -Taurine: http://webprod.hc-sc.gc.ca/nhpid-bdipsn/ingredReq.do?id=1528&lang=eng
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 Wiki Description – Taurine: http://en.wikipedia.org/wiki/Taurine
 rockstar69.com Original Rockstar Ingredients
 Chang, PL (2008-05-03). “Nos Energy Drink – Review”. energyfanatics.com. http://energyfanatics.com/2008/05/03/nos-energy-drink-review/.
 EFSA adopts opinion on two ingredients commonly used in some energy drinks efsa.europa.eu/
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(2008). “Safety issues associated with commercially available energy
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48 (3): e55–63; quiz e64–7. doi:10.1331/JAPhA.2008.07055. PMID 18595815