This is Dr. David
yes, potassium and magnesium can cause nausea
also excessive anxiety and excessive stomach acid can also cause nausea and upset stomach and low appetite and vomiting.
it sounds like she might benefit from stomach acid blocking medications like zantac or prilosec to decrease stomach acid
she might need medications to help decrease anxiety symptoms like an SSRI agent like zoloft or paxil or klonopin or xanax.
she should contact her doctors about her symptoms and supplements right away.
online doctors should not be telling you to stop or start supplements her doctors have prescribed to her.
she might need a prescription for zoloft to help decrease nausea.
if she takes the supplements, have her take them with food in the stomach and never on an empty stomach.
let me know if you have questions.
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