My son is not eating anything from last 3-4 days only liquid thing like milk and juice.. he is active and playing all day .. what is reason ??

A. Your toddler's refusal to eat is usually temporary. A young child's interest in food will wax and wane — dipping during teething, spiking during growth spurts, dropping during bouts of contrariness, and so on. But over a period of several days or weeks, most toddlers consume the necessary nutrients needed to thrive.