Exam 1: Nutrition: Food for Health

In a controlled study,if neither the subjects nor the investigators know which subjects are receiving treatment,the study is called a(n)

Which of the following statements about the typical American diet is true?

An adverse or toxic reaction is most likely to occur if:

Name some reliable sources of nutrition information.

Processed foods and convenience foods tend to ______ compared to freshly prepared foods.

Recently,Trevor received an e-mail forwarded to him by a friend.The e-mail warns all recipients of the dangers of an FDA approved artificial sweetener,which,according to the original author,is responsible for several types of cancer,mental illness,and several other serious ailments.The author uses several anecdotal stories as the basis for her assertions.Curious,Trevor does a search on the Internet for the author but cannot find any information about her. a)What do you think of unsolicited e-mail as a source of nutrition advice? b)How likely is it this one FDA approved product causes several different diseases? c)What else makes you wonder about the validity of the information? d)How might you use the Internet to get more information about the artificial sweetener in question? e)How can you tell if nutrition information in a letter,in an article,or on television is accurate?

Which of the following is likely to limit the availability of food?

People's food choices are affected by many factors other than the nutritional value of the food.Select two of the factors that affect food choices and explain how you would use this factor to help reinforce a dietary change an individual is trying to make for nutritional reasons.

Which of the following describes a hypothesis?

A substance found in plants which cannot be made by the body and is not necessary to sustain life,but has healthful benefits,is:

Researchers are interested in whether caffeine has any effect on short-term memory.A study is designed in which two groups of subjects are given capsules that look identical.Group A receives capsules containing caffeine and Group B receives capsules containing powdered sugar.Group B is being given a:

What is the difference between a single-blind and a double-blind study? Why are double-blind techniques used?

Approximately 1000 college students were asked to keep a record of what supplemental vitamins they took and how many colds they had over the course of a year.The amount of vitamin C consumed was compared with the students' incidences of colds.This is an example of a(an):

Which of the following functions is performed by members of all six classes of nutrients?

Which of the following conditions does NOT represent a state of malnutrition?

Eating turkey on Thanksgiving is an example of making a food choice based on:

The discipline which explores the relationship between genetic variation and nutrition is called:

Which of the following would be the LEAST reliable source of information about herbal supplements?

Under-nutrition does not include:

What is epidemiology? Compare the type of information obtained from epidemiological studies to that obtained from human intervention studies.