保持健康的饮食习惯的英语句子包括：

1. Keep healthy eating habits。

2. Maintain healthy eating habits。

3. Eat fresh vegetables and fruits every day。

4. Focus on a balanced diet。

5. Stay away from junk food。

6. Breakfast is the most important meal。

7. Drink a glass of milk in the morning or at night。

8. Eat less meat, eat more vegetarian。

9. If you want to be strong, chew the food into pulp。

10. If you want to avoid getting sick, always have a little hunger。

这些句子可以帮助你更好地表达关于健康饮食的观点和建议，并引导人们养成良好的饮食习惯。