Weighing the Benefits of Dietary Antioxidant Supplements
As the science of antioxidants and pro-oxidants continues to progress, we are learning more about the effects of supplement dosages, the interaction between antioxidants and free radicals, and the role of free radicals in immune response and health.
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Evidence is building that consumption of large doses of dietary antioxidant supplements may not always render beneficial health effects, and some may even have a negative effect. Firstly, the role of free radicals causing various chronic diseases is not yet fully clear. There are also some beneficial actions conferred by free radicals in human physiology. Secondly, antioxidant capacity in the body coupled with the immune system may resist the action of dietary antioxidants. Lastly, the dosage of…
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