Saturday, August 24, 2019
ABS 394
Subtopic 1B!
•What are the top four illnesses that can kill you and are linked to diet?
heart disease, cancer, stroke, diabetes
•What three food components are we biologically adapted to crave
because they were sparse in nature?
salt, sugar, fat
•What is one reason corn, soy beans, wheat and rice are so prevalent in
our diets today?
government subsidies keep supplies high and prices low
•What is the difference between whole wheat flour and white flour in
terms of their nutritional content?
Whole wheat contains the whole wheat seed including the bran and the
germ. The bran and germ are rich in nutrients and vitamins. White flour
is left with just carbohydrates and no nutrients.
•How did the food industry try to avoid deficiency diseases caused by
nutrient-depleted processed foods?
Started to use vitamins as a good selling point.
•What essential nutrient is less available in seeds compared to green leafy
plants?
Omega 3
•What is believed to be the most important factor as the cause of the
diabetes and obesity epidemic we face in the US today?
Sugar sweetened beverages
•What is insulin? What is its primary function?
Insulin is necessary for life. It lowers blood sugar.
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Saturday, August 24, 2019
•Why is identifying specific nutrients as good or bad not an effective way
for deciding what to eat?
Health information is always changing.
•What are the two main reasons for the decline in the nutritional value of
our crops today?
soil depletion, agricultural practices designed to improve traits and not
nutrition
•What are some nutrients that were consistently found in many studies to
be decreased in crops grown between the years 1950 to late 1990s?
protein, calcium, phosphorus, iron, riboflavin (vitamin B2) & vitamin C
•How do we generally get exposed to pesticides?
eating them on or in our food
•What are some health outcomes of chronic (long- term) lower-dose
exposure to some of these pesticides?
respiratory problems, memory disorders, skin conditions, depression,
miscarriage, birth defects, cancer, and neurological conditions such as
Parkinson’s disease
•What age groups are more at risk for adverse health outcomes? Why?
Fetuses, infants, growing children, pregnant and nursing mothers, and
women of childbearing age are most at risk for adverse health outcomes
from exposure to pesticides. Children are more at risk than adults
because children eat more relative to their body weight than adults eat.
•Can pesticides effect fetal development? How are the fetuses exposed?
Exposures during vulnerable periods of development can be particularly
dangerous. These vulnerable periods include fetal development, infancy,
early childhood, and puberty. Fetuses are exposed to pesticides through
the mother's diet. Infants are exposed through breast milk.
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Saturday, August 24, 2019
•Is there any evidence that eating organic foods reduces our pesticide
exposure? If so, how was it demonstrated?
Those who eat an organic diet are exposed to fewer disease-causing
pesticides, and organic farming is more sustainable and better for the
environment. In one study, children were switched from conventional to
organic diets. Urinary concentration of the OP pesticide metabolite
immediately dropped so low it was undetectable. When a conventional
diet resumed, urine concentration of the OP metabolite increased to
previous levels. When organic produce is available and affordable,
buying organic is a relatively easy way for parents to reduce children's
exposure to OP pesticides.
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