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HNSC 1200 (46)
Snehil Dua (46)
Chapter 2

HNSC 1200 Chapter 2: Topic 2.1

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Human Nutritional Sciences
HNSC 1200
Snehil Dua

o982 • Net result is the extinction of many plant species and decrease in biodiversity 
 Moving Towards Solutions Everyone (governments, enterprises, educators, professionals, individuals) can play a role in fighting hunger, poverty and protecting the environment. 
 What Can You Do? Leave your car at home – walk/bike to school/work 
 Choose foods lower on the food chain: Choose plant foods and smaller fish more often. Grains are the lowest on the food chain, followed by vegetables and fruit. Smaller fish are lower on the food chain because they themselves eat lower in the food chain 
 Limit use of canned beef products. Canned beef products often come at the expense of cleared rain forest land. 200sq feet of rain forest can be permanently lost for every 1-pound of beef produced. FIGURE c15.1 in your NCC Supplement compares the amount of grain required to produce 1 pound of bread versus 1 pound of animal weight gain. Beef requires the MOST to produce; whereas the bread requires the least. 
 Grain products require the least amount of energy to produce, followed by plant foods like vegetables and fruits, and pulses/legumes. 
 Choose locally grown foods – require less transportation, packaging and refrigeration 
 Avoid overly packaged foods – choose bulk 
 Use fast cooking methods – ex. stir fry, microwave, and pressure cooking to use less energy than stove/oven. 
 Practice wise resource use – reduce, reuse, recycle 
 Promote sustainability – using resources at a rate at which the earth can keep replacing them (ex. cutting downs tress at a rate no faster than new ones grow). In a sustainable economy, resources do not deplete and pollution does not accumulate. ◦ Examples of sustainable agricultural practices are: Integrated pest management – the use of two or more techniques such as crop rotation and natural predators (rather than pesticides) to control pests
 OS82 Use of manure to decrease need for chemical fertilizers 
 Plowing of compost back into the soil to increase its water holding capacity 
 Open range grazing 
 SEE TABLE C15.2: High-Input and Low-Input Agricultural Techniques Compared and Table C15.3: Sustainable Energy-Saving Agricultural Techniques in NCC Supplement 
 SEE FIGURE C15.2: Ecological Footprints and TABLE C15.4: How Big Is Your Ecological Footprint 
 SEE FIGURE 15.7: Individual Responsibility and Respect for the Environment and look at link http://www.davidsuzuki.org/what-you-can-do/nature-challenge/ 
 Sensory Evaluation of Foods Learning Objectives: Define sensory evaluation 
 Discuss the five classes of stimuli related to food 
 Discuss t
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