Entries by Roxanne Vogel, CSCS, CISSN, EP-C

SUPPLEMENT SERIES: CAFFEINE

Caffeine (1,3,7-trimethylxanthine) is the most widely consumed drug in the world and is commonly used by athletes, both recreational and professional, for performance enhancement.   In the United States, over 70% of caffeine intake comes from coffee, followed by soft drinks and tea, although energy drinks and sports gels and chews containing caffeine are quickly gaining […]

SUPPLEMENT SERIES: BETA-ALANINE

Beta-alanine (BA) is a version of the amino acid alanine which serves as the precursor to carnosine(β-alanyl-L-histidine) in skeletal muscle.  Supplementing with BA is a highly effective means of increasing muscle carnosine content.  What’s so great about carnosine?  Increased muscle carnosine content has been linked to improved exercise performance at higher intensities in both trained […]

SUPPLEMENT SERIES: BCAAs

Leucine, valine, and isoleucine are the three branched chain amino acids (BCAAs), so named because of their non-linear (branched) structure of carbons.  They are essential amino acids, meaning they are not produced in the body and must be obtained via diet, and yet they make up 35-40% of the content of proteins found in human […]