286 FOOD FACTS Coupons for health You can buy continued health protection for your child at any welfare centre or distributing centre. In exchange for a few pence and the coupons in the back of your child's ration book you can get his orange juice and cod liver oil. Don't get just the orange juice and forget about the cod liver oil—one is just as necessary as the other. Think of orange juice and cod liver oil together as you think of pepper and salt, oil and vinegar, mustard and cress. Think of them as the two-part health scheme which your baby needs.