The goal of this research is to examine the level of knowledge and attitudes of health and non-health care workers, who care for the elderly, about the importance of adequate nutrition in old age, as well as its impact on health and illness. A survey questionnaire was used. The first part of the questionnaire related to the socio-demographic characteristics of the respondents, while the second part was a test of knowledge about nutrition guidelines for the elderly („Reference Center of the Ministry of Health of the Republic of Croatia for the Protection of the Health of the Elderly, Training Institute for Public Health Dr. Andrija Štampar”). The test consists of 10 statements, some of which were true and some of which were false. 103 respondents from health and non-health fields, who care for elderly people in Split-Dalmatia County, took part in the survey. Not a single respondent had any, one or two correct answers on the knowledge test. Three and four correct answers out of the offered ten were given by 3 respondents. Five correct answers were given by 15 respondents. Six correct answers were given by the most respondents, 35 of them, which makes up 33.9% of the population. 30 respondents gave seven correct answers, and 15 respondents gave eight correct answers. 1 respondent gave 9 or 10 correct answers, which is only 1.94% of the surveyed population. 17.48% of the respondents did not pass the test, and the average knowledge of the respondents can be said to be good. The results obtained from this research indicate that it is necessary to further educate medical and non-medical personnel related to the care of the elderly about the tools used to assess nutritional status and risk factors that contribute to malnutrition and sarcopenia