Quiz 7 Final Flashcards
the most reliable source of information about the effectiveness of a nutritional supplement
The results of a randomized double-blind intervention trial that compared the nutritional supplement to a placebo
What would be the least reliable source of information about herbal supplements
Pamphlet published by a health food store
And example of an anecdotal evidence
Individual testimony
A scientific study recorded the dietary intake of 60,000 men and track the health of these men for eight years the study concluded that there is an inverse association between the consumption of green tea and the occurrence of prostate cancer what is being discribed
This is an observation study that demonstrates green tea may reduce the risk of prostate cancer.
The best reason for using a placebo as a part of that experimental design
Because it prevents subjects from knowing whether or not they are receiving the treatment
What is an example of anecdotal information
A runner reports having more endurance after eating an energy bar
Healthy rich diet in a variety of vegetables and fruits may help reduce the risk of some type of cancer is an example of what kind of food label claim
Disease risk reduction and therapeutic claim
Orange juice is an excellent source of vitamin C a dietary antioxidants which statement best describes this claim
It is a calm by nutrient content and nutrients function claim
Which of the following items is not required to be presented on the label of natural health products
Reference to study is demonstrating effectiveness of supplement
What is the reason given by health Canada for its proposal to illuminate mandatory reporting a vitamin a and C a nutrient facts label
There is no evidence that Canadians are suffering from serious deficiency a vitamin a and C while some segments of the Canadian population may be getting enough vitamin D or potassium
Daily values on a nutrition facts panel are based on a diet of how many calories
2000
Which is not legally required on a nutrition fact table
Calories from fibre
What is the basis for that order in which ingredients are listed on the food label
Contribution to total weight
The nutrient levels of vitamin A were found to be too low in many of the menus what is the result of the mythology described
The additional statement in Canada’s food guide that Canadians in green and orange vegetables such as carrots and broccoli
The descriptor source of can legally be used on a food label when the product contains at least what percent of the daily value of the stated nutrient
5%
Which statement does not accurately describe the purpose for the daily value in nutrition facts label’s
Daily values maybe used to access the probability that a person is meeting his or her needs
What is the most powerful tool in promoting health and nutrition message
Mass media
A scientist is interested in the relationship between diet and breast cancer and decides to do a case control study he was able to find a group of women who had breast cancer and collects dietary intake information from them what is the next step
The scientist must assemble a group of healthy women the controls who are the same age and ethnicity as the woman who had breast cancer the cases
Which of the following statements regarding pub med is false
It is a password-protected site
How do you describe an intervention trial in which neither the subjects nor the investigator knows which subjects our receiving treatment
Double-blind study
Define placebo
A fake medicine or supplement that is indistinguishable in appearance from the real thing it is used to disguise the control from the experimental groups
Found an intervention trail
In a controlled experiment what is the group that does not receive treatment
Control group
Which of the following is not a true statement about nutritional studies using animals
Results from animal studies can be generalized to the human population
The study of the intro Laois and ship between health and disease and other factors in the environment or lifestyle of the different populations
Epidemiology we’re also known as observational studies
Correlation is different than causation
Direct is positive and inverse negative
A limitation of observational studies is
A confounding factor
What is the confounding factor
A factor that is related to both the outcome being investigated example disease and a factor that might influence outcome dietary intake
Example is a cancer study involving age
What are the two observational studies
Prospective cohort study and case control study
What is the prospective cohort study
Where the dietary intake information is collected by the researchers and the health of the study participants is absurd usually for several years at the end of the study scientist determine whether there are any correlations between dietary intake and disease
What is a case control study
That compares individuals with particular conditions under study with individuals of the same age 6 and background who do not have the condition
What is a human intervention trial or clinical trial
A study of a population in which there is an experimental manipulation of some members of population observations a member measurements are made to determine the effects of this manipulation compared to the members who did not go under the manipulation
What is the control group
A group of participants in anexperiment that is identical to the experimental group except the no experimental treatment is used it is used as a basis of comparison
What is a treatment group
A group of participants in an experiment who are receiving an experimental treatment effects of the treatments are compared to the control group
The difference between our observational study and an interventional trial is
Interventional trial has causation in the end
What is the single behind study
And experiment in which either the study participant or the researcher unaware of which subjects are in the control or experimental group
What is a double-blind study
An experiment in which neither the study participants nor the researchers know who is the control or the experimental group
What does 2% milk fat mean
2 g of fat per hundred grams of milk
What are the four types of nutrition labelling
One nutrition facts
- nutrition content claims high or low
- Diet reduce risk of disease
- nutrient function claims
Nutrition labels must have how many corn nutrients labelled
13
If something is lowfat what does it mean
less than 3 g of fat per serving
It’s low in saturated fat what does it mean
Less than 2 g and 15% of caloriesfrom saturated fat
Fat free means
Less than or equal to 0.2 g of trans and less than 2 g of saturated and trans combined
What does light mean
Less than a quarter of the original calories
Nutritional genomics
IThe study of her diet affects our genes
What is the depletion repletion study
A study that feeds subjects a diet devoid of a nutrient until signs of deficiencies up here and then add the nutrient back in the diet to levels at which symptoms disappear and health is restored
What is the balance study
I study that compares the total amount of nutrients that enter the body with your total amount that leaves the body
The three most important government agencies in Canada they provide health and go to information are
Health Canada the food inspection agency and the public health agency of Canada
The Canadian food inspection agency published a comprehensive guide on food labelling entitled what
Industry labelling tools that enforce the regulations described in the sky
Percentage of salt intake versus a beneficial nutrients such as calcium intake
Salt should be less than 15% daily value and calcium should be more than 15% if possible daily per
food item
What is the diet related health claim
Often a certain nutrient that may reduce the risk of disease
What is the nutrient content claim
Low fibre high calories
Fat free
What is the nutrient function claim
The rule of nutrients or dietary ingredients in maintaining normal structures or functions in humans for example calcium aids in the formation of maintenance of bone and teeth
Natural health products must include
Product name product license holder natural product number product medicinal ingredients product nonmedical ingredients product dosage form and recommended use recommended purpose risk
