Core Points - Potassium is an essential electrolyte for the human body, crucial for heart contraction, nerve and muscle function, and metabolism of carbohydrates and proteins [2] - The recommended daily intake of potassium for healthy adults is 2000mg, with a 2023 update suggesting an increase to 3600mg to prevent chronic diseases [3] - Low potassium levels can lead to severe health issues, including muscle weakness, heart rhythm disturbances, and respiratory difficulties [5][6] Group 1: Health Risks of Potassium Deficiency - Symptoms of potassium deficiency include persistent fatigue, muscle cramps, digestive issues, heart palpitations, and breathing difficulties [6][7] - Severe potassium deficiency, defined as blood potassium levels below 3.5mmol/L, can be life-threatening [4] Group 2: High-Risk Populations - Certain groups are at higher risk for potassium deficiency, including those who sweat excessively, the elderly, individuals with high blood pressure, diabetes patients, and those on restrictive diets [8][9] Group 3: Potassium Supplementation - The preferred method for potassium supplementation is through dietary sources, with recommendations for high-potassium foods such as vegetables, fruits, legumes, nuts, and tubers [9] - Caution is advised against blind potassium supplementation, especially for individuals with renal impairment, as it may lead to hyperkalemia [10]