How to make nutritious and healthy family food?

First, food should be diversified, and different foods have different nutrition. Second, the proportion of meat and vegetables should be reasonable, with three portions of meat and seven portions of vegetables. Third, according to the different family members and physical conditions, the oils and condiments used are also different. For example, foods for the elderly are generally low in oil, salt, sugar and cholesterol. Fresh vegetables and fruits, protein and foods with high calcium content should be supplemented with miscellaneous grains. Teenagers pay more attention to the taste of food, the diversity of food, the collocation of meat and vegetables, comprehensive nutrition, it is best not to be picky about food, and use oil reasonably in food processing. Distribute food according to the season, eat less fruits and vegetables that are out of season, the food should be light in summer, and the intake of fatty food should be appropriately increased in winter. Five, master the processing methods of a variety of foods, and adopt different methods for different foods to reduce the loss of nutrition during food processing.