For people living with diabetes, it is very important to put fundamental principles into practice to ensure an as stable as possible glucose level. The key principles that should be followed are ‘have regular meals. Eat a diet well-balanced in nutrients. Practice proper portion control.’ This study provides methods for practicing diet therapy in people with diabetes and discusses ways to achieve the dual target of ‘healthy meals’ and ‘delicious meals.’ Included herein are some tips for cooking healthy meals to successfully manage diabetes. Included in these suggestions are ‘Choose healthy seasoning,’ which means use less salt and simple sugars and fats and use more herbs and spices, vinegar and seasonings. ‘Choose healthy cooking methods’ is another tip, indicating the practice of sort cooking method well-matched ingredients. The final suggestion for cooking for diabetics is to ‘Choose healthy ingredients,’ for example, choose foods high in fiber and utilize low-calorie ingredients whenever possible. By following these suggestions, people with diabetes will find it easier to achieve glucose control.