Beriberi is a disease in which the body does not have enough thiamine (vitamin B1). Beriberi is a nutritional disorder caused by thiamine (vitamin B1) deficiency. It can affect the cardiovascular and nervous systems, leading to symptoms like fatigue, muscle weakness, and nerve damage. The blog explains Beriberi , its types, causes, symptoms, risk factors, treatment options, and possible complications. Beriberi is a deficiency of thiamine, more commonly known as vitamin B1. Your body needs thiamine to break down and digest the foods you eat, to keep your metabolism going, and help your muscles ...