Meanwhile, here are some easy-to-notice reactions to too much
of the nutrients we've already talked about:
Vitamin C - diarrhea.
Magnesium - (1) diarrhea; (2) some potential for oversedation; especially with a magnesium sulfate (epsom salt) bath (which is inadvisable if also taking sedative psych meds or herbs).
Vitamin D - (1) insomnia (especially if taken later in the day); (2) overstimulation (e.g., usually with many thousands of mg.)
Zinc - (1) nausea, though this may just be due to not enough B6; (2) with very high doses, oversedation. See the next entry.