人到老年,身体各器官功能逐渐减退衰弱,易患各种慢性疾病,因此在饮食时宜低盐、低脂肪、低糖。 低盐 盐是人体内氯和钠的主要来源。但常吃过咸的食物,会使体内水分潴留、心脏排血量增加,易引起肾病和高血压。老年人运动量不足,出汗 People to the elderly, the function of various organs gradually diminished body weakness, susceptible to a variety of chronic diseases, so in the diet should be low salt, low fat, low sugar. Low-salt salts are the main source of chlorine and sodium in the body. But often eat salty foods, will make the body water retention, increased cardiac output, easily lead to kidney disease and high blood pressure. Older people lack of exercise, sweating