1. Food and Health Diet and Food Production

2. LEARNING AIMS Define the term ‘balanced diet’ Explain how an unbalanced diet can lead to malnutrition especially obesity

3. Think, pair, share In groups, discuss and come up with a definition of a ‘balanced diet’  Use this website to decide whether you have a healthy diet  http://www.fineli.fi/foodbasket.php?lang=e n http://www.fineli.fi/foodbasket.php?lang=e n

4. Food groups for a balanced diet http://www.5aday.nhs.uk/topTips/default.htmlHealthy eating tips

5. Malnutrition Definition of malnutrition Obesity is a form of malnutrition- how is obesity defined?

6. Body Mass Index- is it an accurate measure of obesity?

7. Calculating your BMI Measure height in cm. = __________ Square it. Height 2 = __________ Weigh yourself- mass in kg.= _____ Apply the formula: BMI= mass in kg (Height in cm) 2

8. Diet and CHD discuss the possible links between diet and coronary heart disease (CHD) discuss the possible effects of a high blood cholesterol level on the heart and circulatory system, with reference to high- density lipoproteins (HDL) and low-density lipoprotein (LDL)

9. Study finds new link between childhood obesity and heart disease Neck arteries of obese children as young as 10 resembled those of a typical 45-year-old, a new study has found. The research is more evidence that the process of artery disease can begin early in life, increasing the risk of premature heart disease in adulthood. Guardian Wednesday 12 November 2008 How old are your arteries?

10. Coronary heart disease Astra Zeneca animation http://www.youtube.com/watch?v=fLonh7ZesKs Animation from text book. http://advancedsciences.cambridge.org/ocr/biology _1/animation/9908 Lipoprotein and atheroma animation http://www.wiley.com/college/pratt/0471393878/stu dent/animations/lipoproteins/index.html

11. Lipoprotein structure

12. The effect of diet on lipoproteins Low-fat diet reduces overall lipoprotein concentrations. High intake of saturated fats (where from?) will increase LDLs High intake of unsaturated fats (from?) will increase the proportion of HDLs Polyunsaturated fats help reduce LDLs in blood

13. C A A B Can you name A, B and C?