Государственное Бюджетное Образовательное Учреждение города Москвы лицей № 1535 ПРОЕКТНАЯ РАБОТА (на английском языке) Analysis of the school food supply from the viewpoint of nutritional and dietary value. (Анализ школьного питания с точки зрения диетической ценности) Москва, 2015 Contents Introduction ...................................................................................... 1 Chapter 1. Theoretical input.............................................................. 2 School as a habitat............................................................................. 2 Nutrition as an integral part of a school habitat ................................ 3 Nutrition plans in other countries .................................................... 4 Chapter 2. Practical Experiment ...................................................... 6 Objectives ......................................................................................... 6 Experiment procedure ...................................................................... 6 Results ............................................................................................... 8 Conclusions ...................................................................................... 8 Reference........................................................................................... 10 Appendix .......................................................................................... 11 Introduction Since the time when human beings have evolved enough to change the external natural conditions in correspondence to their need, they have been creating their own man-made habitats with unique and specific compounds. Our houses, office buildings, shopping centres and any other enclosed space can be referred to as habitats at least temporary. Schools are no exception. In any developed society schools play an extremely important socializing and developing roles. A child usually spends at school from five to seven hours on average and even more. The same is true for the teachers who do not spend there less time and, as a rule, tend to be there for even longer periods. Thus, for almost half a day five-six days a week a school building plays a role of a habitat for both young growing organisms of pupils and already developed organisms of educational stuff. As any habitat school has to meet the needs of its temporary “habitants”. One of the most crucial physical demands of any living creature being the need of nutrition, at school students should have the opportunity to eat in order to restore their energy level. Usually schools have canteens that provide students with food. All over the world the system of nutrition is different, though each has its own basis and regulations. To our mind the aspect under analysis, i.e. nutrition at school, is always very acute and topical. It is so especially for young children who need a very balanced diet for appropriate physical growth and mental development as well. Therefore, we have decided to devote our project to the study of the subject. In the theoretical part of our project work we have tried to compare approaches to nutrition in different countries with the one in Russia. The experiment that has been conducted in course of the research is devoted to a more thorough examination of the food system in a Russian school with the further analysis of the results. 1 Chapter 1. Theoretical input In the first chapter we will make an attempt to introduce the theoretical basis for our practical research. To implement and assess correctly the results of the experiment which is to be conducted in course of the current project work it is essential to observe the following points: - a habitat and its functions, schools as a habitat; - nutrition in our life; - school dieting all over the world. School as a habitat First of all it seems extremely important to prove that school can be considered a habitat. To do this we need to understand what a habitat is and which types of habitats there are. A habitat is a complex of biotic and abiotic conditions where an individual, population or a kind of specie lives the majority of their life. In other words, it includes all bodies and phenomena that directly or indirectly relate to an individual. Habitat has an influence on state, development and reproduction of an individual or a population. A human lives in eternal interaction with a habitat during all its vital functions to satisfy all its needs. There are a few factors, which influence its lifestyle: 1) Abiotic environment (environmental factors) - a complex of inorganic conditions, which has an influence on an organism (light, temperature, wind, air, pressure, humidity, etc). For example, an accumulation of toxic substances or chemical elements in the soil, parching of water during the drought, increase of daylight hours, intensive ultraviolet radiation. 2) Biotic environment (environmental factors) - a complex of impacts of one organism's vital functions on another organism (an impact of plants and animals on other members of biogeocenosis). For instance, destruction of the soil by boars and moles, decrease of number of squirrels in bad harvest year. 2 3) Anthropogenic factors - all forms of human activity that change nature as a kind of living organisms' habitat or has direct influence on their lives. Scientists separate anthropogenic factors from other forms of biotic environmental factors because currently the fate of vegetation land of the Earth and all living species depends on human activity. 4) Technogenic environment (techno sphere) - habitat which is made with the help of human and technical means' impact on natural environment in order to make the best conformity of the habitat to social and economic demands. School as a habitat is a kind of technogenic environment, because the conditions maintained in the school environment for the best studying atmosphere are made with the help of human and of course, it has its impact on natural environment. Nutrition as an integral part of a school habitat As it has already been stated in the precious section a habitat includes several factors that have a great impact on the living-beings that are residents of this or that habitat. On of such factors is food or nutrition. Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. There are different ideas about what products a person should eat and how many calories a day one should consume, but there is no doubt that food is an essential part of life. Right nutrition is one of the most significant things that help us maintain our health. Especially it is important for children and teenagers, whose organisms are in the state of fast growing. The Russian government has a formulary that regulates school catering in Russia. Here are the main theses of these rules. 3 1) Daily diet should contain nutrients such as proteins, lipids, and carbohydrates in relation 1:1:4 and percentage from calorific value 10-15%, 3032% and 55-60% resp. and calcium and phosphorus in relation 1:1,5. 2) Catering for students should be provided according to principles of sparing nourishment, which is based on using special kinds of cooking such as boiling, steaming, stewing, baking and excluding products causing any kind of reaction. 3) Diet made of 2-6 meals per day must include meat, milk, butter and vegetative oil, rye and oat bread (with every course). It is recommended to include fish, eggs, cheese, cottage cheese and other dairy products once per 2-3 days. 4) Food products and food raw material reception in catering in schools and other educational institutions should be implemented in presence of documents confirming their quality and safety (for example, a certificate of quality and food safety, documents of veterinary and sanitary examination, paper manufacturer, delivery of food confirming their origin, certificate of conformity, declaration of conformity) and membership of a particular batch of food according to the Russian legislation. The documents confirming the quality and safety of the products and lab research of agricultural products must be kept by the catering services of the educational institution unless the usage of agricultural products is cancelled. Food products, which do not have a mark stipulated by the Russian legislation, must not be used. While catering for schools companies that proved this service and devise the menu should take into consideration the recommended daily set of food products and their contents for students. Such recommendations for students at the age of 11-18 are presented in our paper in Table 1 (see Table 1 in Appendix). Moreover, the authorities in Russia have also developed a document entitled “An exemplary 24-day menu for the students of 1-4 grades and 5-11 grades”. This document provides us with a list of dishes that correspond to the recommended norms of daily food intake. 4 Nutrition plans in other countries From the Stone Age to the Industrial Age, people have recognized the healthful properties of certain foods. And now, in the Information Age, the importance of nutrition is so well recognized and supported by scientific evidence that virtually every major public health organization in the world makes dietary recommendations. There is no unified internationally accepted approach to the dieting plan for schools all over the world. Various approaches can have both similarities and differences. Below we observe food regulations for school catering in several countries representing different parts of the world (the USA as a representative for America, China – Asia, the UK – Europe). The USA The Government strictly regulates the diet: any school lunch is prepared in accordance with the approved "Guidelines for nutrition for Americans", according to which the dining portion should provide 1/3 of the daily needs of students in protein, vitamins A, C, iron, calcium and calories. Regular menu is based on research of nutritionists, immunologists, allergists. It mainly consist of whole grains, fruits and vegetables, a moderate amount of meat, fish, legumes. The main drink is milk with vitamins. Parents are able to influence on menu in a particular school. The Americans have a national program of school lunches that provide everything to schools. China The Quality of food is controlled by the Department of Nutrition and Food Hygiene. Parents pay for food fixed price, which is set by school. Schools have similar menu: cereals with various fillings like fruit, vegetables, besides the egg and yogurt, boiled rice, vegetables, meat, fruit, sometimes soup or porridge on the water. According to current national standards for student nutrition, lunch provides 40% of the students’ daily nutrients. 5 The UK The Quality of food is controlled by the parliamentary of science and technology. Government advice for a balanced childhood diet includes at least five portions of fruit and vegetables a day, at least 50% of energy from food from carbohydrate, no more than 35% of energy from food to come from fat, not more than 11% of food energy from added sugars, a maximum daily salt intake 6 g. *** So, the question can arise: what is the perfect daily nutrition for children? The opinions are different. For example, one nutritional therapist at NutriCentre said that “looking at the lunches from across the world, it seems mixed in terms of how balanced the diets are. Looks can be deceiving, since while the Finnish lunch, for example, looks very healthy - the focus is on starchy carbohydrates, starchy vegetables and fruit. So it's lacking in adequate protein or green leafy vegetables”. This question has no definite answer, because the food an individual should eat depends on many factors, like age, weight, height, nationality and many others. There are many opinions on this subject. Nevertheless, in Russia the suggested approach to the nutrition organization at school seems to take into consideration all these factors. Chapter 2. Practical Experiment The second chapter of our project paper is dedicated to the description of the practical experiment that aimed to assess the quality of food in an average Russian secondary school. Objectives It has been stated in the theoretical input that there is no common universal international approach to the way student should be fed at school. We, being students of a Russian school with a typical catering serves, were extremely interested in the subjected and wanted to learn more about the food we are offered. 6 In order to do this we have conducted an experiment. The following basic purposes of the practical research may be singled out: 1) to analyze the contents of the food in a school canteen; 2) to compare the nutrition of the school canteen food to the norms of nutrition contents and daily calories intake. 3) to find out and demonstrate if the students that attend our lyceum get the right amount and quality of food during their school day which is 6-8 hours long. Materials and methods For the experiment we needed the following materials: - kitchen scales, - a camera and a notebook for records, - canteen food. The procedure of the experiment was as follows: 1) Every day for a week we went to the school canteen twice a week during breakfast and lunch breaks. 2) We took the food that was offered to students and assessed according to the following criteria: - contents (what the compounds of the dish were) - weight of each of the compounds (we weighed it with the help of the scales). 3) Then using our notes and descriptions we calculated the amount of the macronutrients (carbohydrates, proteins and lipids/fats) in each dish. 4) We also estimated the amount of calories in each dish. 5) Then having collected all the data we compared our results to the norms published in the official regulations. 6) We also compared the set-menu and the optional menu offered in the canteen. 7) We analyzed the results and formulated several conclusions. 7 Results In course of our practical research we managed to make all the necessary measurements, i.e. we weighed the offered meals at lunch and breakfast in the school canteen during one school week (from Monday to Sunday). The corresponding results are present in Table 2 in the column “Weight” (see Table 2 in Appendix). After that having analyzed the components of each meals and using the information about the energetic value of different food produce, we estimated the energetic value of each meal, i.e. the amount of calories was calculated. The obtained data are demonstrated in Table 2 in the column “Energetic value” (see Table 2 Appendix). We examined the dishes from the set menu and the dishes that students can choose. Then we compared our results to the recommended norms and drew some conclusions. Conclusions The conclusion that we formulated on the basis of our theoretical and practical research in the field of school nutrition can be summarized in the following way: 1) The first important conclusion we came to is that the range of dishes in our canteen corresponds to the exemplary dietary plan. 2) Therefore, the energetic value and correspondingly the amount of calories that students consume is sufficient. 3) Moreover, the nutrients intake of the students at our school also is within the borders of the norms that are pointed out in the rules enacted by the Russian government. Thus, summing up, our school canteen provides teenagers with food that contains all the necessary nutrients and necessary energetic value according to the ideal daily diet for the healthy growth of young organisms. 8 Yet, we have noticed one drawback in the system of catering in our school. While breakfast is the same for all of our students, there exist two possible options of dining at school: one group of students gets the set menu and the rest have an optional variant of lunch, i.e. they can choose any dishes they like. While conduction our experiment we also considered this aspect and compared the dishes in both variants of lunch. Having done this we would like to underline the following aspects: 1) It turned out that those students who cannot choose have lunches that practically in all cases meet the regulations of the exemplary many and norm of the daily food intake, their ration at school is balanced in terms of nutritional and energetic values. 2) As for the students who are free to choose the matter is more complicated. Theoretically, through all the week, the canteen provides the dishes that can meet the nutritional needs of students in calories and micro- and macronutrients, but the problem is to choose them correctly. For example, if a student eats the same dish every day, it is obvious that he or she will lack certain elements containing in other products. Unfortunately, it is usually quite difficult to name teenagers healthconscious people who care about what they eat. Still something should and, we strongly believe, can be done about this. Probably, students should be given talks on the importance of a balanced diet so that to encourage them to consider the produce they consume. One more suggestion is to introduce students to the exemplary balanced meal plan and device a certain chart for students where they could mark the dishes they have already eaten so that to follow the appropriate proportions of food. No doubt, there always are aspects that can be improved in any sphere of life. Still, we are glad to say that school as a habitat is safe and beneficial for students in terms of feeding. 9 References 1) A habitat (article) https://en.wikipedia.org/wiki/Habitat 2) Dietary Guidelines for Americans, United States Department for Agriculture http://www.cnpp.usda.gov/DietaryGuidelines 3) Dietary Guidelines http://health.gov/dietaryguidelines/ 4) Food (article) https://en.wikipedia.org/wiki/Food 5) Healthy diet, World Health Organisation, Fact sheet N°394 http://www.who.int/mediacentre/factsheets/fs394/en/ 6) R.Long School meals and nutritional standards, House of Commons Library October 29, 2015 http://researchbriefings.parliament.uk/ResearchBriefing/Summary/SN04195#fu llreport 7) School Food Standards http://www.schoolfoodplan.com/standards/ 8) V. Anasya Steak with carrots, baked plantain and stuffed grape leaves with salad: What school lunches look like around the world (and the UK and US are the most unhealthy), Daily Mail http://www.dailymail.co.uk/femail/food/article-2957301/What-school-luncheslook-like-world.html#ixzz3rur7Kgfb 9) W. C. Wang, A. Worsley Healthy eating norms and food consumption, European Journal of Clinical Nutrition 68, 592-601 (May 2014) http://www.nature.com/ejcn/journal/v68/n5/full/ejcn20142a.html 10) Примерное 24-х дневное меню для обучающихся 1-4 классов и 5-11 классов в общеобразовательных учреждениях в период 2013-2015 гг. города Москвы http://liceum1535.ru/about/canteen/menu_2013_15.pdf 11) Санитарно-эпидемиологические требования к организации питания обучающихся в общеобразовательных учреждениях, учреждениях начального и среднего профессионального образования Санитарноэпидемиологическиеправила и нормативы СанПиН 2.4.5.2409-08, Москва 2008 http://www.standartov.ru/norma_doc/53/53610/index.htm 10 APPENDIX Table 1. Recommended daily set of food products and their contents for students at the Name of the product Rye bread Size of the daily portion g/ml (gross) g/ml (net) 120 120 age of 11-18. 11 Wheat bread Wheat flour Grains (crops) Pasta Potatoes Fresh vegetables (greens) Fresh fruit Dehydrated fruit Fruit or vegetable juice/vitaminized drinks Bone-in meat Chicken (eviscerated) Fish fillet Sausages Milk (2,5%-3,2% fat content) Fermented milk (2,5%-3,2% fat content) Cottage cheese (<9% fat content) Cheese Sour cream (<15% fat content) Butter Vegetable oil Eggs Sugar Confections Tea Cocoa Yeast Salt 200 20 50 20 250 400 200 20 200 200 20 50 20 188 320 185 20 200 105 76 80 20 300 180 78 53 77 19,6 300 180 60 60 12 10 35 18 1 egg 45 15 4,4 1,2 2 7 11,8 10 35 18 40 45 15 0,4 1,2 1,2 7 Table 2. The amount and nutritional value of the canteen ration for a school week. Day Monday Meals Name of the dishes Weight, g Breakfast Lunch Casserole with raisins Pea soup Meat chop 75 180 75 12 Energetic value, calories 157 126 195 Tuesday Breakfast Lunch Wednesday Breakfast Lunch Thursday Breakfast Lunch Friday Breakfast Lunch Mashed potatoes Olivie’s salad Plum compote Cheesecake with jam Shchi Tomato and cucumber salad Meat chop Macarons Strawberry juice Semolina porridge Borsch Caesar salad Rice Sausages Carrot juice Omelette Chicken soup Vinaigrette salad Pelmeni Pear compote Cheese open sandwich Soup with meatballs Crab sticks salad Chicken Mashed potatoes Compote with dried apricots 13 150 50 200 75 180 50 138 92 192 134 137 12 75 120 200 120 180 50 120 100 200 75 150 50 120 200 50 195 190 80 118 90 63 139 215 81 118 110 61 307 90 68 150 50 120 150 200 90 56 192 138 128