We know children are more vulnerable to loss of body water and electrolytes than adults. During diarrhea, body looses much of its water and electrolytes leading to dehydration, electrolyte imbalance and other complications. One of the major electrolytes is potassium, which is lost from our body during diarrhoea and may cause many devastating events. Coconut water is a rich source of potassium. It also contains bicarbonate, sodium, chloride and glucose. So we can give coconut water during diarrhoeal episodes. It is cheap, available and palatable for children. It can help preventing dehydration and its consequences. But ORS should be the first preference during diarrhoea.