Science Case Study "Chocolate Good or Bad"

Authors Avatar

Work Produced by: Anika Kloska

My Chocolate Case      study

Is Chocolate Good for you??

Content

Introduction                                     Page 3

Chocolate is Good for You             Page 4

Chocolate is Bad for You               Page 7

Conclusion                                        Page 10

Bibliography                                     Page 11

Introduction

According to the statistics even during recession chocolate manufacturers can reach profit increase of 30% as consumers turn to chocolate treat in difficult times. Because chocolate is also my favourite comfort treat, in this case study I will research good and bad ways in which chocolate can affect our health.  is a  made from cacao beans (picture above), the seeds of the cacao plant. It is a mixture of cocoa paste, cocoa butter, and sugar. There are a large number of chocolate products on the market, from powdered cocoa for making drinks to .

Chocolate is good for you

Chocolate could be beneficial for our health in many ways. Dark chocolate can help stop blood clots and prevent potentially fatal diseases like stroke or heart attack. This theory has been proved by a series of experiments carried out on large number of people. It has also been said that chocolate may be better for your health than tea because it contains small amount of stimulating substances: caffeine and theobromine (like tea) but also a group of chemicals (flavonoids) that could prevent cancer and heart diseases.

[some information above is taken from : ] 

I am not really sure about the relability of these experiments as the website does not specify how the experiments were carried out, who supervised them or on what number of people had taken part in them. It also does not give many compelling evidences to this theory, so the relability of data is limited.

However this theory had been backed up by more reliable experiments. Scientists who had been carrying them out had found that eating a few squares a day may stave off artery narrowing and hardening in smokers, by countering the disruption caused by their habit. Smoking compromises the activity of both endothelial cells, which line the artery walls, and platelets, which are involved in blood clot formation. The researchers compared the effects of dark (74% cocoa solids) and white chocolate on the smoothness of blood flow in the arteries of 20 male smokers. Before eating 40g of chocolate, smokers were asked to abstain from other foods rich in beneficial antioxidants, such as onions, apples, cabbage, and cocoa products for 24 hours. After two hours, ultrasound scans revealed that dark chocolate significantly improved the smoothness of arterial flow - an effect which lasted for eight hours Blood sample analysis also showed that dark chocolate almost halved platelet activity. What was also noticed is that antioxidant levels rose sharply after two hours. The research, by University Hospital in Zurich, has been published in Heart (cardiologist’s magazine designed especially for cardiac department.)

Join now!

[information taken from: ]

I feel that this information is more reliable as it was taken from a BBC website which is in my opinion respectable, plus the research was done by the scientists from University Hospital, with the use of professional methods and equipment. Another factor which makes this information convincing is that the results of this experiment were published in Heart (professional magazine)

In another test the researchers compared the effects of dark (74% cocoa solids) and white chocolate on the smoothness of blood flow in the arteries of 20 male smokers. Before eating 40g of chocolate, smokers were ...

This is a preview of the whole essay