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The dietary supplement cannot be used as a substitute for a varied diet
In addition to being a classic marker of oxidative protein damage, elevated levels of 3-NT indicates elevated NO production
J Endocrinol (2000) 165(1):939
A single contamination incident leading to an athlete's positive test can damage reputation for years and result in lost partnerships with leagues and teams
Other markers are not commonly measured either in clinical practice or in many clinical trials, making it difficult to interpret whether positive outcomes in some studies are due to correcting a deficiency or due to other pharmacological functions of B12
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