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Lecture 12a,b-24 November 2014 Final exam-120 multiple choice-120 marks from vitamins to end of course -4 short answer questions-15 points each for a total.

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Presentation on theme: "Lecture 12a,b-24 November 2014 Final exam-120 multiple choice-120 marks from vitamins to end of course -4 short answer questions-15 points each for a total."— Presentation transcript:

1 Lecture 12a,b-24 November 2014 Final exam-120 multiple choice-120 marks from vitamins to end of course -4 short answer questions-15 points each for a total of 60 points covers whole course -3 hours- 180 marks

2 Lectures 12a,b Outline Consumer concerns about foods relative to metabolism Hunger and global food issues relative to metabolism

3 Consumer concerns about foods relative to metabolism Nutrient quality refers to foods that will supply all 6 aspects of good dietary planning increasingly there is an understanding of the importance of good nutrition and the type of diet that supplies good nutrition

4 Nutrient quality -food grown, harvested, stored, shipped and kept at store in a way that gives people confidence that their food choices meet the 6 aspects of good dietary planning -in short, people want to be sure that food will satisfy aspects of their metabolism that food is meant to address -concerns are irrational

5 Genetically modified foods -concern about such foods in modifying human DNA thus affecting all aspects of our metabolism -concern about such foods having a modified genome thus producing molecules in our food that will interfere with our metabolism -concerns are irrational

6 Bacteria -bacteria and immune response utilising nutrients -bacteria producing chemical entities that interfere with our metabolism of our food -illness causes problem with appetite -concerns are rational

7 Viruses -viruses and immune response utilising nutrients -illness causes problem with appetite -concerns are rational

8 Prions -affect brain and hence ability to feed self and perhaps make appropriate food choices -concerns are rational but minimal risk in Canada

9 Pesticides -metabolic inhibitors -concerns are rational but minimal risk in Canada

10 Irradiation -damage DNA of food causing incorporation of mutated DNA into our genome -damage of nutrient content and/or producing molecules that will harm our metabolism -introduction of radiation into food -concerns are irrational

11 nutritional supplements -diet/drug interactions -toxicity -lack of efficacy -consistency of active agent(s) from batch to batch -poorly conducted clinical trials (low numbers, poor experimental design) -marketing hype -inaccurate labelling of ingredients (qualitative and quantitative issues) -all above may give interference with metabolism (DAT, metabolism, excretion) -concerns are rational- eg ephedra in power bars

12 Hunger and global food issues relative to metabolism Food security politics-war declared and undeclared -food as a weapon

13 Hunger and global food issues relative to metabolism Food as a way of control in a military pact or political block -Poland- Warsaw pact -East bloc countries

14 Hunger and global food issues relative to metabolism Trading blocks -agricultural subsidies- other countries cannot compete

15 Hunger and global food issues relative to metabolism Global warming -Kyoto/Copenhagen and greenhouse gases

16 Hunger and global food issues relative to metabolism Economic -rich countries not supplying enough money to poorer countries or ensuring that those poorer nations spend the money wisely

17 Hunger and global food issues relative to metabolism Socioeconomic -poorer people with poorer jobs or social standing may not have the money to buy sufficient amounts of higher quality food

18 Hunger and global food issues relative to metabolism Nutrient quality - all of the factors above affecting hunger and global food issues affect the quantity and quality of food available and hence affect all metabolic aspects in humans


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