1 . First of all, you’d better keep a ________ (balance) diet and avoid fast food high in fat and calories. （所给词的适当形式填空）

2 . He cut down on coffee and cigarettes, and ate a ______ (balance) diet. (所给词的适当形式填空)

3 . Most of us need to lead more ________ (balance) lives to be healthy and happy. (所给词的适当形式填空）

4 . What you need now is to have a ____ (balance) diet.

5 . We should have a ________ (balance) diet rich in fruit and vegetables. (所给词的适当形式填空）