1、限制食盐与糖的摄入量,以减少心血管疾病的发病率。盐和糖对血管的老化影响很大。食盐过量易引起高血压;食糖过多容易导致高甘油三脂血症、高胆固醇血症,诱发冠心病、心肌缺血和糖尿病等;也是导致蛋白质及其他营养成分摄入不足和造成肥胖的危险因素之一。 2、多摄取优质蛋白。人到中年,机体内蛋白质的分解代谢大于合成代谢,加之消化吸收功能减弱。所以,饮食要保证优质蛋白质的充足供给,如鱼、肉、蛋、奶及豆制品等。 1, limit salt and sugar intake, in order to reduce the incidence of cardiovascular disease. Salt and sugar have a great effect on the aging of blood vessels. Excessive salt can easily lead to high blood pressure; too much sugar easily lead to high triglyceridemia, hypercholesterolemia, induced coronary heart disease, myocardial ischemia and diabetes; also lead to protein and other nutrients inadequate intake and the risk of obesity One of the factors. 2, more intake of high-quality protein. To middle-aged people, the body’s catabolism than synthetic metabolism, combined with digestion and absorption function weakened. Therefore, the diet to ensure adequate supply of high-quality protein, such as fish, meat, eggs, milk and soy products.