Anemia is still a major public health issue in less-developed countries around the world. Although its causes are well-known and effective measures for its prevention exist, the World Health Organization still ranks it as one of the most important causes of disability-adjusted life years lost. The disease has a profound effect on the quality of life, general health, and work capacity of billions of people globally. The causes of anemia in less-developed countries are diverse and frequently overlap. Micro-nutritional deficiencies, especially iron deficiency, aggravate health already diminished by a higher prevalence of infections, hemoglobinopathies, and higher birth rates. Therapeutic interventions such as the supplementation of iron and other micronutrients, mass deworming, and antimalarial programs have proven to be effective. Nevertheless, it seems that the key for a long term solution is in public education, especially for the most vulnerable groups. In the presented field study Anemia Intervention we wanted to determine the prevalence, causes and prevention possibilities of anemia in the west Kenyan village of Majiwa.