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NUTR 331 Nutrition for Health study ahead solution complete course all you need to know Athabasca University $13.99
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NUTR 331 Nutrition for Health study ahead solution complete course all you need to know Athabasca University
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NUTR 331 Nutrition for Health study ahead solution complete course all you need to know Athabasca University

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  • September 5, 2024
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  • 2024/2025
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  • nutrition for health nutr 331

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NUTR 331 Nutrition for Health study ahead
solution complete course all you need to know
Athabasca University

,Nutrition - --Study of nutrients and other biologically active compounds in foods and in the
body; also human behaviours related to food



Nutrients - --Components of food that are indispensable to the bodies functioning. Provide
energy, serve as building material, support growth, maintain or repair body parts.



Essential Nutrients - --Must be provided directly from food



6 Major classes of nutrients - --Carbohydrates, fat, protein, vitamins, minerals, water



Chronic Diseases - --Long-duration degenerative diseases characterized by deterioration of the
bodies organs. EX: heart disease, cancer, diabetes.



Organic - --Carbon Containing. 4 of 6 carbon containing nutrients: carbohydrates, protein, fat,
vitamins



Vitamins and minerals aid the body in - --Digesting food, moving muscles, disposing wastes,
growing new tissues, healing wounds, obtaining energy from macros



Non-nutrients - --Compounds other than the 6 nutrients present in foods



Phytochemicals - --Naturally occuring compounds found in plants, (colour, taste)



Element diets - --Purified ingredients, intended to supply all essential nutrients to people who
cannot eat food EX: tube feeding

,Assessment of nutritional status - --- History

- Anthropometric measures

- Physical examination

- Laboratory tests



Assessment of nutritional status: History - --Diet, medical history, socioeconomic (finances,
education ) and diet-related conditions. EX: alcoholism, anorexia, cancer, drug addiction)



Anthropometric measures - --Physical characteristics of the body, such as height and weight.



Physical Examination - --Various parts of the body inspected. Hair, eyes, skin, tongue,
fingernails. Can provide evidence of deficiencies, imbalances and toxicity status



Laboratory Tests - --Samples of bodily fluids, such as blood or urine and analyze them in a lab.
Biochemical abnormalities occur long before clinical or physical symptoms appear. Do not
indicate whether the cause is primary or secondary deficiencies



Primary and secondary deficiencies - --Inadequate dietary intake

Inefficient absorptions and excessive exertion



Collecting diet information (4 methods) - --- Diet history

- Food diary

- Twenty four hour recall

- Food frequency

, Food composition databases - --Lists average nutrient composition of foods. Content influenced
by:

- Variety or strain of food

- Geographic location and season of production

- Mineral content of soil

- Stage of maturity at harvest

- Method of processing

- Method and length of time of storage

- Method of cooking



Limitations of Food Composition tables - --- Several nutrients are not included (eg. fatty acids
and trace minerals)

- Not all foods have been tested for all nutrients

- Nutrient data is a approximation

- Not always completely absorbed by body

- Mixed dishes vary widely in nutrient composition



To reduce changes by random chance in intervention studies, researchers apply - --- Large test
groups ( 30 or more people)

- Randomly placed in groups

- Two groups compared at start and finish



Intervention studied without control group is called - --Uncontrolled - Much less reliable



Clinical trial ( Randomized control trials) - --Studies carried out on healthy subjects with an aim
of preventing disease, or sick people to test treatment

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