What is the primary mechanism by which beriberi, a disease caused by thiamine deficiency, leads to cardiovascular complications?

A Increased blood pressure due to vasoconstriction
B Decreased blood pressure due to vasodilation
C Impaired cardiac function leading to heart failure
D Enhanced platelet aggregation leading to thrombosis
Thiamine deficiency impairs the heart's ability to function properly, leading to heart failure.
Harper's Illustrated Biochemistry
Metabolic and Nutritional Disorders Nutrition and Health Vitamin Deficiencies Hard MEDICAL Confidence: high