Food product development
By Nick Winning
Name the chosen disease and outline the causes
Coronary heart disease is the narrowing or blockage of the coronary arteries. This is caused by atherosclerosis (or more commonly known as hardening or clogging of the arteries). Atherosclerosis comes from the build up of cholesterol and fatty deposits on the inner walls of the arteries. This in return restricts the blood flow back to the heart starving the heart of oxygen as well as vital nutrients that it needs to work effectively. Coronary heart disease (CHD) has a relatively large amount of risk factors compared to other affluent diseases. These can include smoking, family history, hypertension, obesity, diabetes, high alcohol consumption, lack of exercise, stress and hyperlipidemia. Smoking is the highest risk factor accounting for around 54% of cases followed by obesity at 20% and lack of exercise at 7-12% of cases. The symptoms of CHD include angina (chest pains), heart attacks and heart failure. When the coronary arteries get blocked this can cause a mild uncomfortable feeling similar to indigestion. However a severe angina attack can cause a painful feeling of heaviness or tightness usually in the chest. Heart attacks can cause permanent damage to the heart muscle and, if not treated straight away can become fatal. However symptoms are similar to that of angina, it is usually more severe. During a heart attack you may also experience sweating, light-headedness, nausea and breathlessness. Heart failure can also in people with CHD when the heart becomes too weak to pump blood around the body, which causes a fluid build up in the lungs making it increasingly difficult to breathe. Heart failure can happen suddenly (acute heart failure) or it can gradually build up over time (chromic heart failure).
Explain the extent of this problem for the Australian community and why it why it occurs. Coronary heart disease is a major problem in Australia. This is because of three factors. Firstly CHD affects about 1 in every 6 Australians. This number is enormous and shows how much medical resources is being used in order to accommodate for this preventable disease. CHD usually occurs from having a high fatty diet or smoking. Both of which is common in Australia. Explain why Australia has a high number
Explain why its an issue (deaths)
Statistics on death rates
Using four examples of manufactured foods, List describe and explain how they are used in the diet to control the disease identified in question 1. People with CHD need to consume more foods that are:
-low in saturated and transfats. Saturated fats are found in some meats, dairy products, chocolate, baked goods and deep-fried and processed foods. As this accumulates in the arteries adding to the blockage. - high in the types of fat found in fish and olive oil. These fats are rich in omega-3 fatty acids. Omega-3 fatty acids lower your risk of heart attack, in part, by helping prevent blood clots. - High in fibre. Fibre is found in whole grains, fruits and vegetables. A fibre rich diet not only helps lower LDL (low density lipoprotein) cholesterol level, but also provides nutrients that may help protect against CHD Knowing all of this, a person suffering from CHD would need to factor all of this into their diet aiming to include as many of these factors into as many meals as possible. Four manufactured foods that can be used in the diet to control a person’s CHD levels can include cholesterol lowering margarine, multigrain bread, a low fat yogurt and a high fibre cereal. Cholesterol is a fatty substance produced by the liver to help meet the body’s need for hormones and bile acids. It enters the body when foods high in fat are consumed or when the body’s cholesterol level is higher than necessary for normal cell functioning. The resulting high blood cholesterol is a condition that greatly increases your chances of developing coronary heart disease. So by a person choosing...
Please join StudyMode to read the full document