(1) Ensure nutritional balance. Meals should meet the body's needs for energy, protein, fat and a variety of minerals and vitamins; the ratio between the nutrients should be appropriate.

(2) Take care of eating habits and the taste of meals.

(3) Consider the season and market availability.

(4) Take into account economic conditions.

Food safety and nutrition.

Nutrition of food refers to the natural composition of various foods, including nutrients, non-nutrient-like substances, etc.

Food safety (food safety) means that food is non-toxic, harmless, meets the nutritional requirements that should be there, and does not cause any acute, subacute or chronic harm to human health.