the fact of being weak and in bad health because of having too little food or too little of the types of food necessary for good health

The condition is caused by dehydration and malnourishment. 这种情况是由脱水和营养不良引起的。

Falls in extreme poverty have reduced the incidence of malnourishment or starvation. 极端贫困的减少使得营养不良或饥饿的发生率降低了。