DHN Exam 1-4

Which of the following substances is a macronutrient?

Protein

Which of the following is NOT a key nutrition concept?

The best way for people to obtain all the essential nutrients is to consume dietary supplements.

Which of the following is NOT true about water?

Water is necessary for immune function.

Which of the following observations is an example of a positive correlation?

When a population's vitamin D intake decreases, the percentage of people in the population that have healthy immune systems decreases.

Which of the following observations is an example of an inverse correlation?

Women who smoke 5 or more cigarettes each day during pregnancy are more likely to give birth to underweight babies than women who smoke fewer than 5 cigarettes a day during pregnancy.

The professional football star Andro "The Man" McGraw claims the dietary supplement AminoProFix helped him build muscle mass quickly and safely. His endorsement of the product is an example of ________.

a testimonial

Which of the following is NOT a biological or physiological factor that influences a person's food choices?

Emotional stress level

Which of the following statements is FALSE?

In order for a dietary supplement to be on the market, all research studies on the supplement must show a beneficial effect on health.

Which of the following statements is true?

Nutrient-deficiency diseases develop when diets lack essential nutrients.

A popular women's magazine has an article about the health benefits of consuming calcium-rich foods. If the article's author has the credentials, ________, after his or her name, the article is likely to be a reliable source of nutrition information.

RDN

Which of the following conditions or diseases is a leading diet-related cause of death in the United States?

Stroke

Choosing foods based on religious teachings is an example of ________ factors influencing eating habits.

cognitive

Scientists conduct a study in which 100 adults with chronic diarrhea are divided into 2 groups with 50 people per group. One group is given a supply of yogurt that contains a certain kind of bacteria, and the other group is given yogurt that is bacteria-free. The study's participants and researchers do not know which group of subjects has the bacteria in the yogurt and which group does not. The scientists instruct the participants to eat the entire 8 ounces of yogurt once a day for a month and record their bowel habits. This is an example of a(n) ________ study.

double-blind

Scientists in a Central American country are studying factors that may be associated with delayed physical growth among a group of low-income children. The children live in a region of the nation that has high levels of lead in drinking water. This study is an example of a(an) ________ study.

epidemiological

A group of registered dietitian nutritionists is planning to conduct a scientific study to investigate the effects of eating honey on behavior in school-aged children. To start, the researchers will

make observations.

An essential nutrient

must be supplied by the diet.

A nutrition researcher would like to determine whether women who take fish oil supplements during pregnancy give birth to babies who score higher on basic intelligence tests when they are 5 years of age than the 5-year old children that were born to women who did not take the fish oil supplements during pregnancy. This kind of research is a(n) ________ study.

prospective

To improve nutrition and weight status, a primary objective of Healthy People 2020 is to

reduce child and adult consumption of calories from solid fats and added sugars.

A group of nutrition researchers interviews 100 adults who have chronic high blood pressure to determine whether there is an association between consuming diets low in calcium during adolescence and developing high blood pressure in adulthood. This study is an example of a ________ study.

retrospective

Actress Lotta Talent appears in commercials endorsing the herbal supplement Hoodia for weight loss. Lotta Talent describes her own weight-loss successes with the supplement. Her endorsement is an example of a(n) ________.

testimonial