Potassium Chloride is a chemical that can have toxic effects on the human body in high concentrations. Excessive intake of potassium chloride can lead to gastrointestinal discomfort, vomiting, diarrhea, and in severe cases, may even lead to breathing difficulties, slow heartbeat, and even death.

The toxicity of potassium chloride is mainly reflected in its ionic nature. When potassium chloride enters the human body, its potassium ions will interact with other ions in the body, resulting in an imbalance of electrolyte balance. Severe electrolyte imbalance can impair the normal function of vital organs such as the heart and kidneys, and may even lead to death.