Category Archives: Sport & Exercise

The Dark Side of Supplementation: Antioxidant Dietary Strategies in Sport

Oxidative stress reflects an imbalance between production of reactive oxygen species (ROS) and the ability to detoxify reactive intermediates or to repair the resulting damage by an adequate antioxidant defense. This adverse state may lead to damage of all cellular components including proteins, lipids and carbohydrates. Oxidative stress is recognised to be involved in many...
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Sports Performance and Fatigue

Fatigue is a common symptom during illness, but is also seen in healthy subjects (e.g. athletes). Interest has recently increased in the use of over-the-counter supplements and naturally occurring nutriceuticals for the attentuation of fatigue, despite, no scientifically established treatment recommendations for fatigue. Two factors have previously made it difficult to establish treatment recommendations for...
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Taurine: Safety and Sports Performance

The popularity of amino acids as supplemental ingredients in various dietary supplements, functional foods, and beverages has increased exponentially in the last decade, with their prevalence being highest in sports nutrition and beverages, of particular note, the original red bull. Taurine, L-glutamine and L-arginine are perhaps the three most widely used amino acids. However, despite...
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Vegetarianism and Sports Performance

Vegetarianism is a dietary practice of not consuming meat and possibly other animal derived foods and beverages. Vegetarian diets can be divided into, but not limited to, four categories: lacto-ovo-vegetarian (with diary and eggs), lacto-vegetarian (with dairy), ovo-vegetarian (with eggs) and vegan diets (devoid of all animal products). The position of Dietetics Australia on vegetarian...
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Zinc Deficiency in Competitive Swimmers

The possible causes of zinc deficiency in athletes are inadequate intakes, excessive losses by sweat and urine, and redistribution of plasma zinc to specific tissues to counteract the oxidative stress and the maintenance of the immune response. Intense physical exercise increases oxygen consumption and induces excessive formation of free radicals and reactive oxygen species (ROS)....
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