Core Points - The article discusses the importance of potassium in the human body and addresses common misconceptions about potassium supplementation and its effects on health [4][5][6][8]. Group 1: Importance of Potassium - Potassium is the third most abundant mineral in the human body and is essential for various bodily functions, including heart function, muscle contraction, blood pressure regulation, and metabolism [4][5][6][7]. - A deficiency in potassium can lead to symptoms such as fatigue, muscle weakness, heart rhythm disturbances, and digestive issues [13][14]. Group 2: Recommended Intake - The recommended daily intake of potassium for healthy individuals is 2000 mg, with a higher intake of 3600 mg suggested for the prevention of chronic diseases [9][10]. - Current studies indicate that the average potassium intake among Chinese residents is significantly below the recommended levels, with figures around 1827.9 mg/day and 1547.2 mg/day [14]. Group 3: Sources of Potassium - Potassium is abundantly found in various fruits and vegetables, with bananas, avocados, and dried fruits being notable sources [15][16][17][18]. - A balanced diet rich in fruits and vegetables is the best way to ensure adequate potassium intake without the need for supplements [19]. Group 4: Special Considerations - Certain populations, such as those on high-salt diets, athletes, individuals experiencing prolonged vomiting or diarrhea, and those on diuretics or steroids, should pay special attention to their potassium intake [20][21][22]. - For individuals with severe potassium deficiency, medical intervention may be necessary, and supplementation should be done under professional guidance to avoid potential health risks [23].