What it means
MedlinePlus lists the main electrolytes as sodium, potassium, chloride, calcium, magnesium, phosphate and bicarbonate. They help keep the right amount of water inside and outside cells, steady your heart rhythm and let muscles contract.
Levels can shift with repeated vomiting or diarrhea, heavy sweating, some medicines, heart, liver or kidney disease, too little fluid during hard exercise or heat, and drinking very large amounts of plain water.
Symptoms of an imbalance can include muscle cramps, weakness, fatigue, headache, confusion and an irregular heartbeat. A basic blood panel measures the main electrolytes.
Most people get enough from regular food. During stomach illness or prolonged vomiting and diarrhea, an oral rehydration solution can replace both fluid and electrolytes. People with heart or kidney disease, or those on diuretics, should ask before using electrolyte drinks or salt tablets, since their limits can differ.
Why it matters
Vomiting and diarrhea during GLP-1 dose increases can drain electrolytes as well as water.