(1) Answer: Calculate the average energy demand and the average energy demand of three meals = (2400+2 100)/2 = 2250 kcal = 30%: 40%: 30% = 2250× 0.3+2250× 0.4+2250. The energy of staple food is 2250× 65% = 1462.5kcal, and cereal staple food 100g generates 350kcal, so staple food1462.5 kcal×100g/350 kcal = 418g. The distribution is as follows: flour 100g, rice 300g 2) Arrange the types of non-staple food according to the food provided, and list the quantity according to the demand for protein. Steps to estimate the main non-staple food in combination with the balanced diet pagoda: average demand: (75+65)/2 = 2 protein =70g staple food:100g ÷100g×1.2300g ÷/kloc-. .222 = protein content is 75g/ serving, protein content is 50g/100g×16.2 = 8.1g8.8g10.2g8.1g = 35.3g3) Other non-staple spinach. And the energy and nutrients (protein, fat, carbohydrate, calcium, iron, vita, vitb 1, vitb2, vitc) were calculated. Breakfast: egg cake (50g eggs, flour 100g, flour10g); Cooking oil). White rice porridge (rice 30g) Lunch: rice (rice150g); Dried bean curd (dried bean curd 50g, shredded pork 50g, 5g); Edible oil); Vegetarian fried spinach (spinach 200g, cooking oil 5g) Dinner: rice (rice150g); Fried shrimps with carrots (50g of shrimps, 5g)； of carrots 100g); Edible oil); Spinach and egg soup (spinach 100g, eggs 25g, cooking oil 5g) 1. Energy: average requirement per person = (2400 2 100)/2 = 2250kcal actual energy intake = 30g/100g× 346+100g×100g×100g×. 100g×11.2+50g/100g×16.2+75g/100g×13.3× 0.88+. 100g×0.8+ 100g/ 100g× 1.5+50g/ 100g×3.6+75g/ 100g×8.8×0.88+300g/ 100g×0.3×0.89+ 100g/65438 / kloc-0/00g× 13+ 100g/ 100g×3 1+50g/ 100g×308+75g/ 100g×56×0.88+300g/ 100g×66×0.89+ 100g / Kloc-0/00g× 3.5+50g/100g× 4.9+75g/100g× 2× 0.88+300g/100g× 2.9× 0.89+/kloc 100g× 0+50g/100g× 0+75g/100g× 234× 0.88+300g/100g× 487× 0.89+100. 100g× 0.11+100g× 0.28+50g/100g× 0.03+75g//kloc-0. 100g×0.05+ 100g/ 100g×0.08+50g/ 100g×0.07+75g/ 100g×0.27×0.88+300g/ 100g×0. 1 1×0.89+65438 / kloc-0/00g×0+75g/ 100g×0×0.88+300g/ 100g×32×0.89+ 100g/ 100g× 16×。 A: This recipe can basically meet the daily needs of diners for various nutrients. The main reason for calcium deficiency is that milk and dairy products are not provided. Vitamin b2 deficiency is mainly due to the failure to provide foods with high b2 content such as milk, beans and viscera. The intake of vitamin A is high. Because the two vegetables provided are high in carotene. We need to add 250ml milk, 1 fruit, 100-200 g on the basis of the current diet, and adjust the variety of vegetables. 2. There are about 400 people who choose to eat in the canteen of a factory, including 360 men and 40 women, aged 20-30, who are physically active. The grain purchased by the buyer on that day used 100 kg of rice, 160 kg of flour, 30 kg of eggs, 40 kg of pork, 200 kg of soybean milk, 240 kg of wax gourd, 12 kg of sunflower oil, and the remaining 20 kg of soybean milk. If workers eat three meals a day in the canteen: (1) Can the meals purchased by the buyer meet the workers' needs for energy and nutrients (protein, vitamin A, b 1, b2, c, calcium and iron) that day? (2) Is the dietary composition reasonable? How to improve it reasonably? (3) Under what circumstances can I no longer eat the leftover soybean milk? And how to identify it? (1) Answer: Step 1: Look up the table according to the dris standard formulated by the Nutrition Society of China, calculate the required value of the standard per person per day, and fill it in the table. Step 2: According to the current food intake, calculate the average energy per person per day and the actual intake of nutrients such as protein, and fill in the table. Energy calorie protein G vitamin augre vitamin b 1mg vitamin b2mg vitamin cmg calcium mg iron mg male standard 3200758001.410080015 female standard 27006570638+0.3638. The demand standard is 3150747901.391.381008015.5, and the average actual intake per person is 31294+0298+02.30089.000000000806 100g× 346+160kg/100g× 344+30kg/100g×144× 0.88+40kg/1. Protein: per capita requirement standard: (360× 75+40× 65)/400 = 29,600/400 = 74g actual intake =( 100kg/ 108). 100g× 1 1.2+30k g/ 100g× 13.3×0.88+40k g/ 100g× 13.2+ 180kg/ 100g× 1.8+240kg/ Vitamin A: per capita requirement standard: (360× 800+40× 700)/400 = 316000/400 = 790 ugre actual intake =( 100kg/ 100g). 100g× 234× 0.88+40kg/100g×180kg/100g× 65438+240kg/100g×13. Kloc-0/2.9g 4 .. Vitamin b 1: Per capita requirement standard: (360×1.4+40×1.3)/400 = 556/400 =1.39mg Actual. 100g×0. 1 1+ 160kg/ 100g×0.28+30k g/ 1 1×0.88+40k g/ 100g×0.22+ 180kg/ Vitamin b2: per capita requirement standard: (360×1.4+40×1.2)/400 = 552/400 =1.38mg actual intake = (65438/kloc-. 00g×0.27×0.88+40k g/ 100g× 1 100g×0+ 160kg/ 100g×0+30kg/ 100g×0.88+40kg/ 100g×0+ 180kg/ / Kloc-0/00g× 0+240kg/100g×18× 0 ... Calcium: per capita requirement standard: 800mg actual intake = (100 kg. 100g×3 1+30k g/ 100g×56×0.88+40k g/ 100g×6+ 180kg/ 100g× 10+240kg/ 100g× 1 9×0.8+65438+400 people = =336.26mg8 ... Iron: per capita requirement standard: (360 people×15+40 people× 20)/400 = 6200/400 =15.5mg actual intake = 00 g× 2× 0.88+40 kg/100 g×1.6+188 shows that energy, protein, vitamin b 1, vitamin c and iron meet the standard requirements; However, vitamin A, vitamin b2 and calcium can't meet the standard requirements, which belongs to insufficient intake. Suggestions for dietary improvement: supplement foods with high va content, such as animal liver and carrots; Foods containing b2, such as animal liver, foods with high calcium content, such as milk and dairy products. Therefore, in the diet, we should appropriately reduce soybean milk and increase milk and dairy products, fish and shrimp, animal liver, fruits and other foods. (3) Identification of soybean milk quality