Which vitamin deficiency is associated with the condition known as beriberi, characterized by inflammation of the nerves and heart failure?

A Thiamine (Vitamin B1) deficiency ✓
B Riboflavin (Vitamin B2) deficiency
C Niacin (Vitamin B3) deficiency
D Pantothenic acid (Vitamin B5) deficiency

Explanation

Thiamine, also known as Vitamin B1, plays a critical role in energy production and nerve function. A deficiency in thiamine can lead to beriberi, a condition characterized by nerve inflammation and heart failure.

Source

World Health Organization
Vitamins Nutrition Thiamine Deficiency Medium MEDICAL Confidence: high