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
High potassium diets are - 
Select and explain. 
A. Green leafy vegetables, B. Milk, C. Banana, D. Iodised salt
A: Green leafy vegetables
Answer: A: Green leafy vegetables 
Explanation: <p> Potassium:- Adult human body contains 250g of potassium. Potassium is vasoactive , increases the blood flow and sustains metabolic needs of the tissue. Potassium is released by endothelial cells and it supplements lower BP. Rich sources: Tender coconut oil is rich source. Green leafy vegetables, potato, beans, chicken etc. Plasma concentration of K is 3.4-5 mEq/L. Dietary requirement-3-4 g/day. {Reference: Park&;s textbook of community medicine 23 rd edition, pg 622}