Hello Sir, My son is 4 years old , he doesn't eat at all , I try to feed him variety of foods , but he doesn't show any interest , he only drinks 2 glasses of milk for entire day , he doesn't eat chocolates , chips or any junk food too ...., the movement I start feeding him He either cries or spits the food , he doesn't have any favourite food too so that I can feed him I am worried abt his health , his present weight is 17.8kgs , sir pls advice