In what way did chance play a part in the discovery of the cause of beriberi Explain.?

Chance played a significant role in the discovery of the cause of beriberi when Dutch physician Christiaan Eijkman observed that chickens fed polished rice developed symptoms similar to beriberi, while those fed unpolished rice remained healthy. This unexpected finding led him to investigate the nutritional differences between the two types of rice, ultimately identifying that the husk of the rice contained vital nutrients, particularly thiamine (vitamin B1). Eijkman's serendipitous observation highlighted the importance of dietary components, paving the way for understanding the disease's link to nutrient deficiency.