Vitamin C

Top Vitamin C Containing Fruits

Fruits are not the only vitamin C containing plant foods. In fact, red bell pepper beats out most fruits in the vitamin C department at 95mg per 1/2 cup and 3.5 ounces of parsley packs a vitamin C wallop of 125 to 300mg. Brocolli and Brussels sprouts are no slouches either. But most people don't want to snack on these foods and often wonder which fruits have the most vitamin C, besides oranges, which really are a great source but not the true champions. There is a lot more to good nutrition than individual vitamins and all these fruits have an abundance of other vitamins, minerals, and phytonutrients, not to mention fiber.

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Vitamin E and C for Strength and Bodybuilding: Should You Take Them for Exercise Induced Oxidative Stress?

Oxidative stress is an imbalance between free radicals (pro-oxidant molecules) and the body's oxidative defense mechanisms. Primarily the free radicals in our bodies are derived from the consumption of oxygen but there are many possible radical species. The basic definition is a particle that contains one or more unpaired electrons and this can be true of many different substances. However the most important ones for us are those derived from oxygen or nitrogen. They are called reactive oxygen/nitrogen species or RONS for short.

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Oxidative Stress From Exercise

The topic of exercise-induced oxidative stress has received considerable attention in recent years, with close to 300 original investigations published since the early work of Dillard and colleagues in 1978. Single bouts of aerobic and anaerobic exercise can induce an acute state of oxidative stress. This is indicated by an increased presence of oxidized molecules in a variety of tissues. Exercise mode, intensity, and duration, as well as the subject population tested, all can impact the extent of oxidation. Moreover, the use of antioxidant supplements can impact the findings. Although a single bout of exercise often leads to an acute oxidative stress, in accordance with the principle of hormesis, such an increase appears necessary to allow for an up-regulation in endogenous antioxidant defenses. This review presents a comprehensive summary of original investigations focused on exercise-induced oxidative stress. This should provide the reader with a well-documented account of the research done within this area of science over the past 30 years.

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Vitamins and Sports Performance

Sports success is dependent primarily on genetic endowment in athletes with morphologic, psychologic, physiologic and metabolic traits specific to performance characteristics vital to their sport. Such genetically-endowed athletes must also receive optimal training to increase physical power, enhance mental strength, and provide a mechanical advantage. However, athletes often attempt to go beyond training and use substances and techniques, often referred to as ergogenics1, in attempts to gain a competitive advantage. Pharmacological agents, such as anabolic steroids and amphetamines, have been used in the past, but such practices by athletes have led to the establishment of anti-doping legislation and effective testing protocols to help deter their use. Thus, many athletes have turned to various dietary strategies, including the use of various dietary supplements (sports supplements), which they presume to be effective, safe and legal.

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