For acute diarrhea, what is the duration of zinc treatment recommended by guidelines?

• A. 5 days
• B. 7-10 days
• C. 10-14 days
• D. 21 days

Answer: (C)

Zinc helps replenish what is lost during an acute diarrheal episode and supports gut mucosal healing and immune defense. Because the goal is to restore zinc stores and sustain recovery beyond the immediate dehydration, guidelines recommend giving zinc daily for about 10 to 14 days. This duration captures the recovery window where zinc can reduce the duration and severity of the diarrhea and lower the risk of persistent diarrhea. Shorter courses may not provide full benefits, while extending beyond the 14-day mark isn’t usually necessary and can affect adherence. So, the standard duration is 10–14 days.