health and nutrition lab quiz Flashcards
What is a sugar substitute?
food additive that duplicates the effect of sugar in taste, but usually has less food energy
Why might someone choose a sugar substitute?
-people might think it’s healthier
-cheaper
How is it possible that diet sodas cause weight gain?
contains sugar substitutes that cause weight gain
What is a placebo?
a substance or treatment which is designed to have no therapeutic value
What is the placebo effect?
The placebo effect is when a person’s physical or mental health appears to improve after taking a placebo or ‘dummy’ treatment
Give an example of the placebo effect?
After participants take a pill, their blood pressure and pulse rate increases, and their reaction speeds are improved. However, when the same people are given the same pill and told it will help them relax and sleep, they report experiencing relaxation instead.
-it’s a pyschological effect
What does it mean if people have more reactions to aspartame in the placebo group than the aspartame group?
-the actual product doesn’t work
-it’s just the psychological effect that makes people think that the product is working, meanwhile it’s all in their head
Why does the sample size(# of participants) matter in scientific experiments?
because it will affect people differently based on their lifestyle and dietary differences
If something is natural, does it always mean it is safe?
No, because some natural ingredients that are derived from plant components are toxic.
-e.g. stevia (sugar substitute) from plants causes infertility and cancer
What does it mean for a brand to establish a “brand name preference”? How
could a brand name preference influence someone’s health over their lifetime?
-achieve brand loyalty for the rest of that consumer’s life
-marketing less healthy products –> persuade kids to prefer unhealthy products over their lifetime, which will lead to long-term health problems
How could social media food advertisements influence adolescence health? Name 2 examples.
-persuades kids to prefer unhealthy foods
-e.g. keep seeing McDonalds ads, more likely to consume sweet drinks and unhealthy foods
-e.g. seeing Doritios ads all the time, make you crave chips more often and create a habit of eating chips as a daily snack
Why is it that advertising works so well on children under the age of 12?
-minds are still growing, when children see something they want it
-more likely to be persuaded when seeing ads with lots of colour, music and action
Why are adolescents neurobiologically less prepared to think critically about the
media?
-the younger the child is, the more vulnerable they are to the marketing strategies
-literacy skills don’t develop until the age of 12
What are possible additives that are in some protein powders? What possible effects could these additives have on health?
-caffeine (tremors, migraines, insomnia)
-creatine (weight gain, dehydration, stomach pain, muscle cramping)
-sweeteners (harmful in large amounts)
How can toxins, contaminants, and organic material in some protein powders present health risks to consumers?
-kidney + brain damage
-disrupts hormones–> health issues
