Half of people get nausea at about 4 mg of copper: Nausea threshold in apparently healthy individuals who drink fluids containing graded concentrations of copper(Olivares, 2001 Jun)https://pubmed.ncbi.nlm.nih.gov/11407930/ I believe the cause of the nausea is fluoride detox. Fluoride is quickly attracted to copper in the stomach, and fluoride is what really causes the nausea. You … Continue reading 3 mg of Copper Causing Nausea?