Background: Stunting is a malnutrition caused by prolonged lack of nutrition intake indicated by height-for-age z-score <-2. The study aimed to determine the effect of the age complementary feeding initiation, protein intake, zinc intake, and also the history of infectious diseases with the incidence of stunting

Methods: This study used a cross sectional design in Sumbang II Banyumas. Sixty two children with stunting within the age of 24-36 months were recruited as participants by purposive sampling. They consume anthelmintics regularly, do not consume supplements,had no history of chronic infection. analysed bivariate using Pearson and Rank Spearman, multivariate using Linear Regression test.

Results: most of participants (88,7%) had an early complementary feeding initiation, 61,3% had low zinc intake, and 77,4% had a history of infectious diseases. The age of complementary feeding initiation p=0,000, zinc intake p=0,045, and history of infectious diseases p=0,000 were significantly correlated to stunting. The dominant variables affecting stunting were the age of complementary feeding initiation, zinc intake, and also history of infectious diseases. protein intake p=0,260 was not significantly corelated to the incidence of stunting.

Conclusion: Factors that affect the incidence of stunting were age of complementary feeding initiation, zinc intake, and the history of infectious diseases.

Keywords: stunting, complementary feeding, zinc intake, infectious diseases.