NSC 170C1 Exam 3 with Correct Answers 2024 New Update
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NSC 170C1
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NSC 170C1
NSC 170C1 Exam 3 with Correct Answers 2024 New Update
Lifestyle Factors the Increase Risk of Cancer - Answer-Red meats
Smoked, cured, salted, chemically preserved meats
Alcohol enhance carcinogens in tobacco
High salt consumption damages stomach lining → stomach cancer
Phytochemicals - An...
NSC 170C1 Exam 3 with Correct
Answers 2024 New Update
Lifestyle Factors the Increase Risk of Cancer - Answer-Red meats
Smoked, cured, salted, chemically preserved meats
Alcohol enhance carcinogens in tobacco
High salt consumption damages stomach lining → stomach cancer
Phytochemicals - Answer-Naturally occurring plant chemicals thought to support health.
Found in fruits, veggies, beans, some whole grains
Phytochemicals: Benefits - Answer-Imitate actions of natural hormones
Protect cells against chemical reactions that lead to cancer
Prevent carcinogen formation + block action
Supplements - Answer-Products containing nutrients, botanical, amino acids, or
enzymes intended to supplement the diet
Not intended to substitute for food or meals
Functional Foods - Answer-A food that has a positive effect on health beyond providing
basic nutrients
People who might benefit from supplements - Answer-Pregnant/lactating women
Elderly (Vit. B12 + Ca)
People w/inadequate sun exposure (Vit. D)
Low kcal diets
Vegetarians
Food allergies, lactose intolerance
Alcohol abuse
Medical conditions
Medications that increase needs for certain vitamins
Supplements: Regulation - Answer-FDA regulations less strictly then drugs
DSHEA shifted responsibility for assessing quality, effectiveness, and safety of
supplements from FDA to supplement manufacturers
No approval needed unless new ingredient that hadn't been used before 1994
FDA cannot remove from marketplace unless proven unsafe/harmful
USP - Answer-Companies use USP voluntarily for consumer confidence
Test supplements to ensure that they: contain ingredients in amount stated; dissolve in
body in reasonable amount of time for proper absorption; free of contaminants;
manufactured using safe/sanitary procedures
, Consumer and Supplements - Answer-FDA has strict guidelines for claims appearing on
supplement labels, such as "high-potency" - must have 100% of RDA of at least 2/3
micronutrients in supplement
FDA requires that certain info appears on labels: clearly identify content, list of all
ingredients, supplements facts panel
Functional Foods: Benefits - Answer-Economic way to help treat chronic disease
Probiotics can help lactose intolerant people to digest dairy products, positively affect
immune system, relieve allergies, and reduce inflammation in intestinal tract
Vitamins - Answer-Tasteless, organic compounds needed by body in small amounts for
growth
There are vitamins: most from food; vitamin D+K, niacin, niotin can also be synthesized
in body or microorganisms in intestinal tract
Fat Soluble Vitamins - Answer-Requires fat to be properly absorbed
Vitamins A,D,E, and K
Absorption occurs in small intestines
Water Soluble Vitamins - Answer-Absorbed in water and enter bloodstream directly
Important to absorb everyday
B vitamins and vitamin C
Antioxidant Vitamins Definition - Answer-Substance that neutralize free radicals, which
can cause cell damage
This is the body's natural defense against free radicals
Antioxidant Vitamins - Answer-Compounds include vitamins E and C, the mineral
selenium, vitamin A and beta-carotene
Factors that can destroy vitamins - Answer-Vitamins can be destroyed by air, water, and
heat
How to prevent destruction of vitamins - Answer-Don't expose produce to air
A little water is enough
Reduce cooking time
Keep food cool
Vitamin A: Major Functions - Answer-Fat soluble vitamin
Essential for healthy eyes; component of 2 light-sensitive proteins found in the retina
Affects cell differentiation, reproduction, and immunity by initiating gene expression
Vitamin A: Food Sources * - Answer-organ meats (liver), milk, cereals, cheese, and
eggs
carotenoids (carrots, spinach, and sweet potatoes)
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