NDFS 100 EXAM 4 BYU 2026 VITAMINS
MINERALS AND METABOLIC FUNCTION
REVIEW PAPER SOLUTIONS EXPERT GUIDE
◉ What are some of the risks of environmental contaminants?
Answer: Cadmium - slowly destroys kidneys/liver
Lead - kicks out other minerals and causes failure of function
Mercury - poisons nervous system, especially in fetuses (seafood)
Polychlorinated Biphenyls (PCBs) - long lasting skin eruptions, eye
irritations, growth retardation in children
◉ to reduce pesticide intake
Answer: trim fat, use intact fruits/veggies, wash produce, peel/get
rid of outer layer
◉ organic foods pros/cons
Answer: Pros
- Better taste
Cons
- More expensive
, - Not really more healthy
- Not really better for the environment
- Shorter shelf life
◉ gmos: pros/cons
Answer: Pros
- No health issues discovered yet
- Food contains more desired traits (gold rice containing vit A)
- Reduces the amount of land needed for desired output
- reduce pesticides needed
Cons
- Monopoly's can occur when only a fraction of the industry adopts
GMOs
◉ purpose of GRAS additives
Answer: Sugar, salt, etc - improve taste or life of the product.
◉ purpose and safety of Nitrites
Answer: Prevents bacterial growth and preserves the color, Usually
used in meats (hot dogs), safe for consumption, carcinogen
MINERALS AND METABOLIC FUNCTION
REVIEW PAPER SOLUTIONS EXPERT GUIDE
◉ What are some of the risks of environmental contaminants?
Answer: Cadmium - slowly destroys kidneys/liver
Lead - kicks out other minerals and causes failure of function
Mercury - poisons nervous system, especially in fetuses (seafood)
Polychlorinated Biphenyls (PCBs) - long lasting skin eruptions, eye
irritations, growth retardation in children
◉ to reduce pesticide intake
Answer: trim fat, use intact fruits/veggies, wash produce, peel/get
rid of outer layer
◉ organic foods pros/cons
Answer: Pros
- Better taste
Cons
- More expensive
, - Not really more healthy
- Not really better for the environment
- Shorter shelf life
◉ gmos: pros/cons
Answer: Pros
- No health issues discovered yet
- Food contains more desired traits (gold rice containing vit A)
- Reduces the amount of land needed for desired output
- reduce pesticides needed
Cons
- Monopoly's can occur when only a fraction of the industry adopts
GMOs
◉ purpose of GRAS additives
Answer: Sugar, salt, etc - improve taste or life of the product.
◉ purpose and safety of Nitrites
Answer: Prevents bacterial growth and preserves the color, Usually
used in meats (hot dogs), safe for consumption, carcinogen
