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biology extended essay - How different diets: vegetarian, vegan and a meat centered diet has an effect on the health in areas like weight, blood pressure, body mass index and how often you get sick(common cold).

Extracts from this document...

Introduction

BIOLOGY EXTENDED ESSAY How different diets: vegetarian, vegan and a meat centered diet has an effect on the health in areas like weight, blood pressure, body mass index and how often you get sick(common cold). Stephanie Uba Njoku 00511-062 WORD COUNT: 3000 00511-062 08/09 ABSTRACT Research Question: How different diets: vegetarian, vegan and a meat centered diet has an effect on the health in areas like weight, blood pressure, body mass index and how often you get sick(common cold). In this investigation, the method I used was first righting out a survey which consisted of questions that would help in my investigation(see apendix).These surveys were handed out to people willing to participate in the investigation. The results from the survey together with a T test analysis was used to analize the topic and was used to draw conclusions which supported my hypothesis. The conclusion drawn from this investigation was that it did not matter what diet each participant was following what was taken into consideration was the amount of nutrients in the diet and how balanced the diet was. The participants for all the categories that were either underweight or overweight or got sick or had a cold often, this health failure is not particularly due to the type of diet they had but the manner in which they fed, they either ate too much of a particular nutrient or too less of it. If they had tried to balance their diet as some of the participants did then they might have had a normal body mass index and would not get sick so often. ASTRACT WORD COUNT: 221 00511-062 08/09 Table of Contents: 1.1 Introduction..............................................................................1 1.2 Background..................................................................................3 1.2.1 Vegetarians............................................................................3 1.2.2 Vegans...................................................................................4 1.2.3 Meat eaters............................................................................4 3. Method...........................................................................................11 4.1 Results..........................................................................................12 5.1 Data and Analysis........................................................................17 5.1.2.Conclusions..........................................................................18 5.1.3. Limitations...........................................................................19 5.1.4. Errors...................................................................................19 5.1.5.Improvements of the experiment..........................................19 6. Bibliography..................................................................................20 7. Appendix........................................................................................21 Extended Essay 00511- 062 08/09 1.1 Introduction During the past few decades of the 20th century, the popularity of vegetarianism increased in the United States and Europe ...read more.

Middle

A balanced diet is a diet that contains all the appropriate nutrients in their right proportions. Examples of these nutrients include vitamins, proteins, carbohydrates, water, minerals and fats. Eating excess or too little of some dietary components makes the diet unbalanced with might lead to malnutrition. A lack of a particular nutrient in the body can cause deficiency diseases, eventhough some disorders that are related to diets are due to excess eating. If the participants in this investigation all consumed a balanced diet then they would all be healthy especially in areas like having a normal body mass index. This is what I expect to show in the results of the investigation. 10 00511-062 08/09 3. Method In order to carry out this investigation thirty participants were needed which included; * 10 meat eaters * 10 vegetarians * 5 vegans Participants had to be teenagers. > the following information was needed from each participant; * height * weight * blood pressure * BMI * how often they got a cold The method used in this investigation was: * First writing out a survey consisting of questions that would help in the investigation. The questions were meant to relate to the health of the individual and other basic information about the individual such as age, height etc. (see apendix) * These surveys were handed out to individuals willing to participate in the investigation. * The participants were asked to wait for about 10 to 20 mins so that the body would be at rest with a normal heart beat of 60-70 times per minute (see introduction) blood pressure was then taken by the school nurse. * The information got from the survey was used in the investigation for conclusions to be drawn concerning the health of vegetarians, vegans and meat eaters so that conclusions would be drawn as to which diet was healthier. 11 00511-062 08/09 4.1 RESULTS 4.1.1 SURVEY RESULTS FOR VEGANS Table 2 Questions: First participant Second participant Third participant Fourth participant Fifth participant How old are you? ...read more.

Conclusion

The participants for all the categories that were either underweight or overweight or got sick or had a cold often, this health failure is not particularly due to the type of diet they had but the manner in which they fed, they either ate too much of a particular nutrient or too less of it. If they had tried to balance their diet as some of the participants did then they might have had a normal body mass index and would not get sick so often. 19 00511-062 08/09 5.1.3 Limitations Some limitations to this investigation was that there should have initially been ten vegetarians, ten vegans and ten meat eaters but I only came across five vegans who were willing to participate in the investigation, some of the vegans mentioned that they were not very commited to the diet and were taking gradual steps before they practising the diet completly. For this reason, the results and conclusions of this investigation might not be very reliable because the comparison was between ten vegetarians, five vegans and ten meat eaters. This also affected the t-test results. Another limitation in this investigation is that the number of females compared to the number of males is uneven. For the vegetarians only females participated in the investigation, the vegans were represented by four females and one male, non vegetarians were represented by seven females and three males this again can have an effect on the investigation beacause the males participating in the investigation exercised more compared to the females therefore making them more physically fit and healthy. 5.1.4 Errors:There were no errors made in this investigation the data was read and analized correctly. 5.1.5 IMPROVEMENTS : So what can we do to improve this investigation.This investigation would have improved if the participants that had switched from one diet to the other were asked to state their reasons for doing so and what diet they switched from. If they switched for health reasons then this information would have been helpful in determining whether their health have improved, stayed the same or had got worse. ...read more.

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