Answer:
According to the Prevagen website, "Prevagen is an over-the-counter supplement for healthy brain function and memory improvement." A disclaimer indicates that these statements are "Based on a clinical study of subgroups of individuals who were cognitively normal or mildly impaired." Its package also claims that Prevagen supports "healthy brain function, sharper mind, and clearer thinking."
However, as discussed below, there is little evidence that Prevagen (from Quincy Bioscience) provides any meaningful benefit in terms of memory improvement, and the extent of potential improvement appears to be minimal. Due to actions by the FTC, the marketing claims for Prevagen have been scaled back from earlier claims that it treats conditions such as head injuries and Alzheimer's disease.
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