请翻译 “一般认为,中老年人每日摄入的食盐量应按制在5克以内；而高血压和冠心病患者,要控制在3克以下

Generally,the old people should take of salt in less than 5 g according to the system ; And hypertension and coronary heart disease patients should control in the 3 g.希望可以帮你!