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The old wives tale says that vitamin C helps when you're sick. Recent evidence suggests that it might not be superstition after all. But then again, it might be.
Zev - December 1, 2017 10:59 AM
The most damning indictment of the Vitamin C study comes from Marik himself:
In a response letter to Chest, Dr. Marik wrote, "Our decision to describe and publish our experience occurred afterward."
(https://doi.org/10.1016/j.chest.2017.04.182)
If they already knew the results when they decided to write up their experience, it is misleading for them to call this a "Retrospective Before-After Study." It is actually an anecdotal report, essentially a case series.