Translation of nutrient recommendations into personalized optimal diets for Chinese urban lactating women by linear programming models

Table 2 Food group intake constraints included in the linear programming model

Food group	Upper limit (g)	Food group	Upper limit (g)	Food group	Upper limit (g)
Wheat bun	400	Red & yellow vegetable	500	Egg	50
Wheat noodle	400	Other vegetable	500	Liquid milk	500
Bread	400	Pickle	500	Yogurt	500
Rice	400	Apple and pear	350	Milk powder	500
Wheat flour product (fried)	200	Banana	350	Soup	250
Wheat flour product (non-fried)	400	Processed fruit	350	Sugar-sweetened beverage	250
Potato	100	Other fruit	350	Fast food	100
Tuber	100	Citrus fruit	350	Fried snack	100
Coarse grain	150	Pork	75	Non-fried snack	100
Various beans	150	Poultry	75	Cake and ice-cream	100
Soybean	35	Aquatic product^a	75	Plant oil	30
Nut	35	Other livestock meat	75	Animal oil	30
Millet	400	Organ meat	20	Condiment	6
Leafy vegetable	500	Processed meat	50

^aAquatic products refer to fish, shrimps, crabs, shellfish and other fishery products

ISSN: 1471-2393