曾晶介绍，味觉和咀嚼功能减退、胃肠蠕动减慢、消化液分泌减少，这些都会影响老年人的食欲和消化吸收能力；空巢状态、独居老人可能会饮食上更为简单随意。这些都会导致老年人饮食营养摄入不均衡，最终影响健康。
zēngjīng jièshào ，wèijué hé jǔjué gōngnéng jiǎntuì 、wèi cháng rúdòng jiǎnmàn 、xiāohuàyè fēnmì jiǎnshǎo ，zhèxiē dōu huì yǐngxiǎng lǎoniánrén de shíyù hé xiāohuà xīshōu nénglì ；kōngcháo zhuàngtài 、dújū lǎorén kěnéng huì yǐnshí shàng gèngwéi jiǎndān suíyì 。zhèxiē dōu huì dǎozhì lǎoniánrén yǐnshí yíngyǎng shèrù bù jūnhéng ，zuìzhōng yǐngxiǎng jiànkāng 。
Zeng Jing explains reduction of taste and chewing function, gastrointestinal motility slowed down, and decreased digestive juice secretion, which all affected the appetite and digestion and absorption capacity of the elderly; empty nest state, elderly people living alone may be more simple and casual. These will lead to an imbalance in the nutritional intake of the elderly and ultimately affect their health.