Which statement best describes the criteria used to set the EAR for vitamin C?

Question

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The EAR (Estimated Average Requirement) for vitamin C is set based on maintaining adequate levels of vitamin C in neutrophils, a component of the immune system, in combination with low levels of vitamin C excretion in the urine. This approach ensures that the body retains sufficient vitamin C for its needs while minimizing excess that would be excreted.

Which Statement Best Describes the Criteria Used to Set the EAR