I believe prior work showed large effects from short periods of supplementation. (Edit: Note that this work seems to debunk prior work, but this should explain the study design)
We also see moderate to large effects from short periods of supplementation for the non-cognitive effects, so we might expect similar saturation for the cognitive effects.
I believe prior work showed large effects from short periods of supplementation. (Edit: Note that this work seems to debunk prior work, but this should explain the study design)
We also see moderate to large effects from short periods of supplementation for the non-cognitive effects, so we might expect similar saturation for the cognitive effects.