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Purpose: Anemia is an important problem of public health that is widespread throughout the world. Although there are many different causes of anemia, nutritional causes are the most common. The aim of this study is to investigate the types of nutritional anaemias seen between the ages of 6 months and 18 years, and the characteristics affecting these anaemias in our province. Materials and Methods: Cases diagnosed with nutritional anaemia in the paediatric outpatient clinics between 2019and 2021 were included. Results: A total of 2187(51.9%) of the cases were girls and 1375(32.6%) were adolescents. Of 4217 subjects, 3110(73.7%) had microcytic, 781(18.5%) had megaloblastic and 326(7.7%) had mixed type anaemia. Girls had a higher total iron-binding capacity (368.6±57.5 vs. 361.7±56.9, p=0.013). Vitamin 25(OH)D serum levels were lower in megaloblastic and mixed anaemia than in microcytic anaemia (11.7 (2.3-66.7) vs. 13.9 (2.1-102), p<0.001 and 10.3 (2.3-60.8) vs. 13.9 (2.1-102), p<0.001, respectively). 216(6.9%) and 174(5.5%) patients with microcytic anaemia had malnutrition and obesity, respectively. 90(11.5%) and 42(5.4%) patients with megaloblastic anaemia had malnutrition and obesity, respectively. The incidence of malnutrition was higher in those with megaloblastic anaemia than microcytic anaemia(p=0.033). Conclusion: Nutritional anaemia is an important problem in both adolescence and childhood. Among the types of nutritional anaemia, microcytic anaemia is the most common. Since mixed forms of these anemias can also occur, caution is required in the diagnostic phase. Microcytic anemias often occur in girls. In addition to malnutrition, a low serum level of 25(OH)D can also be a risk factor for the development of nutritional anemias.