Is it acceptable to use the underlined words in the sentences?

Is it acceptable to use the underlined words in the sentences?

1. A new Chinese policy provides guidance in evaluating and categorizing foods and drinks in order to make healthy food and beverage choices available for students.
2. Analiza said she could eat a high proportion of vegetables and fruits and eat moderate amounts of energy-rich and protein-rich foods.
3. A Thai health expert said, "Ours is the great responsibility of maintaining and nourishing the lifestyles of students and youth."
4. Discipline has to start with ourselves and sustain it through our entire lives.
5. Having healthy diets and manifesting positive eating behaviors will help us improve our daily lifestyles.