NUTR 331 Nutrition for Health - Midterm
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questions Athabasca University
,nutrition - --the study of function and interaction of nutrients, and the processes by which the
body uses them
what makes a nutrient essential - --required for growth, required for regulation of body
processes, required for repair of body tissue
greatest component of a chemical analysis of food - --water
an organic compound can be defined as: - --a substance or molecule containing carbon
a nutrient deficiency can be detected in its earliest stages by - --lab tests of urine and blood
samples
what is the best method for obtaining diet info for a large nutrition survey? - --food frequency
the 6 major classes of nutrients - --carbohydrates, lipids (fats), protein, vitamins, minerals, and
water
T/F a food composition table can be used to determine the amount of iron actually absorbed by
the body from a serving of liver consumed - --False
what nutrient source yields more energy than 4 kcalries per gram - --fats (plant fats specifically)
what is an example of a micronutrient - --iron
what is the ADMR for fat - --20-35%
, what is the ADMR for carbs? - --45-65%
what is the ADMR for protein? - --10-35%
what is an example of an anthropometric measurement? - --body weight or height
what type of deficiency is caused by inadequate absorption of a nutrient? - --secondary
a case-control study is carried out to determine the relationship between diet and colon cancer.
the results indicate that subjects with high cholesterol intake have 30% higher risk of cancer.
Does this result mean that dietary cholesterol causes colon cancer? - --no not necessarily. it
may be a case of guilt by association (the real cause may not be cholesterol but some other
food component associated with cholesterol); also may be some error in diet assessment
an epidemiological study reveals that populations whose members consume diets low in
cereals have high incidence of prostate cancer. does this result mean that cereals prevent
prostate cancer? - --no not necessarily. may be guilt by association (the real cause of is inversely
associated with cereals); also may be sources in assessment or prostate cancer reports
discuss advantages and disadvantages of anecdotal studies as means of investigating the
dietary causes of disease - --anecdotal studies may allow recognition of relationships between
diets and disease but only if they involve a large number of reports or similar symptoms; in
many cases these studies are too individual and can lead to other areas of research but not
form concrete details
why do intervention studies use control groups? why are they given placebos? - --control
groups ensure that treatment is actually causing observed changes; placebo is given to counter
the placebo effect (the tendency of patients reporting to feel better after any sort of treatment)
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