（来源：沈阳晚报） 转自：沈阳晚报 凌晨时分，救护车疾驰穿过沈阳的街道。沈阳急救中心皇姑第三分中心薛鹏急救小组接到紧急任务：一 名年轻男子在家中突发意识丧失伴四肢抽搐。检查发现，他因快速减肥导致严重低钾血症，一度心跳缓 慢，命悬一线。这场发生在深夜的急救，为所有执著于"快速瘦身"的人，敲响了关乎生命的安全警钟。 深夜惊魂 减肥30斤 服药后突发急症 凌晨1时30分，急救小组在接到任务后，不到10分钟便抵达患者家中，只见年轻男子瘫倒在床上，意识 模糊。据其朋友描述，患者在一个月内通过极端节食和大量运动减重30斤，当天因牙痛服用布洛芬和人 工牛黄甲硝唑后，突然出现了抽搐、意识不清的症状。 医生检查显示，患者心率仅每分钟50次，心电图提示窦性心动过缓，护士孙启明当即建立静脉通路，担 架员将其安全转运至医院。最终检查结果显示，患者血钾浓度仅2.9mmol/L（正常值3.5-5.5mmol/L）， 确诊为低钾血症合并窦性心动过缓。 致命真相 低钾血症凶险 竟与减肥密切相关 快速减肥诱发低钾血症的三个原因： 一是饮食摄入不足：极端节食会避开香蕉、菠菜等富钾食物，直接导致钾摄入匮乏； 二是汗液流失过多：大量运动加速钾随汗液 ...

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]

Core Points - The article emphasizes the importance of potassium in the body and the risks associated with low potassium levels, especially during hot weather and excessive sweating [3][4][5] - It highlights that simply drinking water after sweating may not be sufficient to replenish lost electrolytes, particularly potassium [5][6] Group 1: Importance of Potassium - Potassium is essential for maintaining cellular function, muscle contraction, and heart health, with normal blood potassium levels ranging from 3.5 to 5.5 mmol/L [3][4] - Low potassium levels can lead to serious health issues, including muscle weakness, heart rhythm disturbances, and in severe cases, life-threatening conditions [4][6] Group 2: Causes and Risks of Low Potassium - Excessive sweating, especially in high-temperature environments or during prolonged physical activity, can lead to significant potassium loss [4][5] - High-risk groups for low potassium include the elderly, children, and individuals with chronic illnesses or those taking diuretics [6][7] Group 3: Prevention Strategies - To prevent low potassium levels, it is crucial to consume electrolyte-rich beverages and potassium-rich foods such as bananas, oranges, and spinach, especially after sweating [5][7] - Monitoring for early signs of low potassium, such as fatigue and muscle cramps, is important for timely medical intervention [6][7]