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Variety social factors influenced health outcomes, including unhealthy behavior and knowledge. Food was processed and purchased by the mother in common. Therefore, housewife plays a key role in a household’s diet and nutrition because knowledge and behavior of housewives are dominant factors in preparing their family’s meal. One of the ingredients that are used intensively is frying oil. The intake of frying oil, as edible oil and a source of fat, are an important factor that affects people’s health. The problem is repeated heating frying oil at high temperatures during cooking is a very common practice without knowing the harmful effects of such. Repeated heating frying oil was the problem that triggers Non-Communicable Disease. Knowledge contributed to the behavior of repeated heating frying oil usage. The objective of this study was to identify the correlation between knowledge and behavior of housewives with the usage of repeated heating frying oil. This research located in Komplek Markas Besar Angkatan Darat (Indonesian Armed Forced Housing) using the Cross-Sectional method and statistical analysis Chi-Square test. A total sample of 34 housewives was collected by the Stratified Random Sampling Method. The result showed that 22 respondents (64,7%) used cooking oil properly and 12 respondents (35,3%) conducted repeated heating frying oil. Bivariate analysis indicated that there is a relationship of knowledge and behavior with repeated heating frying oil practice (p-value< 0,05). It is recommended to conduct counseling and training from health workers as the preventive efforts and minimizing habits to the repeated heating frying oil.

Repeated heating frying oil, behavior, knowledge, housewife, NCD