Signs of potassium deficiency can include muscle cramps, weakness and an irregular heartbeat. (virginiahopkinshealthwatch.com)
Signs of severe potassium deficiency include fatigue, muscle weakness, abdominal pain and cramps, and in severe cases abnormal heart rhythms and muscular paralysis. (ericbakker.com)
First of all, while I have never had what you call the «keto flu,» I seriously doubt that it is caused by potassium deficiency. (KetoDietApp.com)