This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and health, Subject name: Social & Preventive Medicine
Burning foot syndrome was described by - 
Select and explain. 
A. Gopalan, B. Ramalingaswamy, C. Pauling, D. Limann
A: Gopalan
Answer: A: Gopalan 
Explanation: <p> Pantothenic acid (vit B5):- Human blood normally contains 18-35 mg of pantothenic acid per 100 ml blood . Mostly present in cells as coenzyme A. The daily requirement: 10 mg Deficiency: Dr Gopalan ,a world renowned nutritionist from India, linked the burning feet syndrome with pantothenic acid deficiency. Manifested by pain, numbness in the toes, sleeplessness, fatigue etc. {Reference: Park&;s textbook of community medicine, 23 rd edition, pg no. 620}