The prevalence of malnutrition in children under five in Indonesia is quite high. The disease is one of the factors that play a direct role in nutritional status. Diarrhea and ART are diseases that are often found in toddlers and are one of the reasons toddlers are brought to health services. Diarrhea is the most common disease in toddlers and ARI is the second most common disease after diarrhea. Hepatitis is a disease that can cause liver damage. The prevalence of hepatitis in Indonesia in toddlers aged less than 1 year is 0.45% and in toddlers aged 12-59 months is 0.36%. This figure is not high enough. However, it should be noted that hepatitis in toddlers exists and prevention must be done to maintain the health of the liver an important organ for the body. Methods the research design is an observational analytic with a cross-sectional research design. This research used secondary data obtained from the 2018 Riskesdas data with the sample used being toddlers aged 0-59 months in Indonesia. Results, there was a significant relationship between diarrhea and the nutritional status of toddlers (pvalue = 0.001; OR= 1.191), ARI also showed a significant relationship with the nutritional status of toddlers (p-value = 0.001; OR= 1.192).