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Taurine Decreases Oxidative Stress After Eccentric Exercise in Rats: Human Equivalent Dose ca. 3.5g-4g

Regular readers of the SuppVersity will certainly be familiar with the sulfur-amino-acid taurine and its various benefits on exercise performance, insulin sensitivity and weight management. So, it may not come as a surprise that a recent study conducted by young scientists from the Postgraduate Program in Health Sciences at the Universidade do Extremo Sul Catarinense in Brazil found that 14-days "preloading" with 300mg/kg taurine per day reduced the exercise induced increase in oxidative stress in rats. Taurine supplementation was found to decrease superoxide radical production, CK [creatine kinase], lipoperoxidation and carbonylation levels and increased total thiol content in skeletal muscle, but it did not affect antioxidant enzyme activity after EE [excentric exercise]. It is rather speculative, whether standard dose equivalent calculations apply to one situation or another - IF they did, you could probably get away with as little as 3.5-4.0g of taurine per day ...

Rat Study Suggests Increased Selenium Requirements in Athletes

Calcium and magnesium , zinc and maybe chromium those are the top sellers among minerals and trace-minerals. Others, such as selenium are likely to be overlooked by the average fitness maniac, who says to him/herself "Selenium? Its in my multi, anyway!" Yet, a recent study published in Biological Trace Element Research ( Akil. 2010 ) reports well measurable effects of selenium supplementation to rats on an exhaustive exercise regimen. The scientists measured the impact of acute swimming exercise on erythrocyte-reduced glutathione ( GSH ), serum glutathione peroxidase ( GPx ) and superoxide dismutase ( SOD ), and plasma malondialdehyde ( MDA ) and lactate levels of the animals and found: Results of the study indicate that the increase in free radical production and lactate levels due to acute swimming exercise in rats might be offset by selenium supplementation . Selenium supplementation may be important in that it supports the an...
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