DHN 101 Ch. 1-3 Quizzes

Which of the following statements is true? According to scientific evidence, taking megadoses of vitamins and minerals are a safe way to prevent many chronic diseases. A diet that has variety contains many different kinds of nutritious foods. Dietitians generally classify foods as either "good" or "junk." In the United States, you are more likely to see undernourished than overnourished people.

A diet that has variety contains many different kinds of nutritious foods.

Which of the following topics is one of the four key components of Dietary Guidelines for Americans, 2010? Eating more calcium-rich foods Avoiding junk foods Building healthy eating patterns Using Nutrition Facts panels to make wise choices

Building healthy eating patterns

The ____ is responsible for ensuring the safety and effectiveness of medications. EPA FTC NRC FDA

FDA

Which of the following nutrients is a micronutrient? Protein Fat Iron Water

iron

Which of the following statements is a health claim that FDA allows on a food package? "Foods that contain dietary fiber, vitamin A or vitamin C may reduce the risk of cancer. Although a serving of our creamed broccoli has 7 grams of fat, it is an excellent source of fiber and vitamins A and C." "While many factors affect heart disease, diets low in saturated fat and cholesterol may reduce the risk of this disease." "Drinking whole milk adds calcium and vitamin D to your diet. These nutrients are essential for strengthening bones." "Vitamin C reduces the risk of the common cold by 50%."

"While many factors affect heart disease, diets low in saturated fat and cholesterol may reduce the risk of this disease."

An 8-ounce serving of a beverage contains 450 ml water, 20 g sugar, and 5 g alcohol. This amount of the beverage supplies _____ kcal. 125 115 180 95

115

The label on a bag of salt-free pretzels indicates that they chips are "low-fat." This means the pretzels provide _____ gram(s) of fat or less per serving. 3 5 7 1

3

According to MyPlate, Erika should consume 3 cups of milk daily. She prefers eating plain yogurt to drinking milk. How much plain yogurt can she eat to meet her plan's recommendation for milk and milk products? 3 cups 2 cups 4 cups 5 cups

3 cups

Jorge weighs 198 pounds. What is his weight in kilograms? 100 kg 120 kg 90 kg 80 kg

90 kg

Which of the following statements is true? The results of one study are usually enough to convince the majority of nutrition scientists to adopt new ideas about nutrition-related topics. Dietary recommendations are generally based on the findings of one well-respected team of nutrition researchers. A scientist's professional affiliations and sources of financial support may influence his or her research findings. Since 1995, nutrition information has undergone few updates, because scientists have discovered all of the nutrients and determined their functions.

A scientist's professional affiliations and sources of financial support may influence his or her research findings.

Which of the following statements is true? Dietary supplements can be recalled if the products contain kava, lysine, or glucosamine. Medicinal herbs must undergo testing for safety and effectiveness by the FDA before they can be marketed in the United States. Consumers can report negative health reports that may have resulted from their use of dietary supplements to the FDA. Dietary supplements can include substances that are spread on the skin or injected into the body.

Consumers can report negative health reports that may have resulted from their use of dietary supplements to the FDA.

A nutrition scientist wants to develop a nutritionally complete formula diet for adults who are healthy but need to avoid solid food for awhile. Based on this information, she is likely to refer to _____ when developing the new formula. MyPlate Dietary Guidelines (2010 version) DRIs Exchange lists

DRIs

Which of the following standards can help you compare nutrient contents of packaged foods to make more healthful choices? RDAs AIs DVs ULs

DVs

You are planning a party for a group of 22-year-old college students. Some of the students follow the dietary practices of the religion of Islam. Which of the following beverages would be acceptable to everyone at the party? Iced punch made with fruit juices and carbonated water. Energy drinks that contain caffeine. Regular coffee, served with sugar and cream. "Lite" beers.

Iced punch made with fruit juices and carbonated water.

Which of the following statements is false? When evaluating claims for dietary supplements that appear at a website, be wary of products that include promises for quick remedies. Websites with .edu in their addresses are likely to provide reliable nutrition information. The Internet is generally a reliable source of nutrition information, because information posted at websites has been peer-reviewed. In general, personal websites, such as blogs, are not reliable sources of nutrition information.

The Internet is generally a reliable source of nutrition information, because information posted at websites has been peer-reviewed.

A group of 50 adult male humans were in a clinical study to determine how much niacin is toxic. During the first two weeks of the study, members of the group consumed only a formula diet that was nutritionally complete, except it contained 24 mg niacin, which is 1.5 times the RDA for niacin (males). At that point in the study, all members reported feeling fine, and they could function normally. During the next week, they were given a formula that contained 48 mg niacin. Within a few days of consuming this formula, 90% of the participants reported feeling ill, and they complained of having upset stomachs and reddened facial skin. At that point, researchers gave the subjects a formula that contain 16 mg niacin. After a week of consuming the new formula, all participants reported feeling well again. Based on this information, the researchers concluded that the EER for niacin was 16 mg/day. AMDR for niacin is between 16 and 24 mg/day. human requirement for niacin is 16 mg/day. UL for niacin was between 24 and 48 mg/day.

UL for niacin was between 24 and 48 mg/day.

Which of the following observations is an example of a positive correlation? When a group of 6-year-old children increase their physical activity level to 60 minutes a day, the children's muscle mass increases. When a population consumes more fruits and vegetables, the percentage of people in that population with scurvy decreases. When teenage girls increase their intake of iron-rich foods, the percentage of the girls who have iron-deficiency decreases. When older adults increase their daily intake of vitamin D, the percentage of the adults that develops infections decreases.

When a group of 6-year-old children increase their physical activity level to 60 minutes a day, the children's muscle mass increases

Which of the following observations is an example of a positive correlation? When women gain less weight than average during pregnancy, the birthweights of their babies tend to be lower than average. When a group of children increases their physical activity levels, the percentage of the children who contract cold infections decreases. When a population's intake of green tea increases, the percentage of lung cancer cases in that population decreases. When members of a population consume fewer fruits and vegetables, their risk of high blood pressure increases.

When women gain less weight than average during pregnancy, the birthweights of their babies tend to be lower than average.

In 2010, Americans ate more ____ than in 1970. eggs red meats added sugars whole grains

added sugars

A team of scientists extracts a chemical that they call "Zombia" from the leaves of a common houseplant. One of the scientists would like to market Zombia as a dietary supplement because it makes people sleepy, when it is injected into them. Based on this information, Zombia cannot be marketed as a dietary supplement because its source is widespread in nature. can be marketed as a dietary supplement because it is from a plant. cannot be marketed as a dietary supplement. can be marketed as a dietary supplement, but only if it is promoted as a conventional food item.

cannot be marketed as a dietary supplement

A scientist discovers a chemical compound in certain rocks that she calls "stonia." She cannot market extracts that contain stonia as a dietary supplement, because it contains more than one kind of natural material. has to receive a U.S. patent before the FDA will approve its use. does not contain dietary ingredients. must first undergo scientific testing to determine its effectiveness.

does not contain dietary ingredients

Which of the following food-related practices is recommended because it can improve the environment? Eating more meat, especially beef Throwing out uneaten and/or leftover foods Consuming more corn-fed beef and pork Eating smaller food portions

eating smaller food portions

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. conventional epidemiological uncontrollable introspective

epidemiological

According to the U.S. Department of Agriculture, Americans eat more ____ than in 1970. eggs whole grains red meats fish

fish

Which of the following topics is one of the four key components of Dietary Guidelines for Americans, 2010? Foods and food components to reduce Processed foods to avoid Milk and milk products to encourage Hidden sources of sodium to limit

foods and food components to reduce

Today, the only food Meghan ate was a casserole that contained 24 ounces of lemon-flavored yogurt, 16 ounces of cooked turkey, and 10 ounces of cooked noodles. According to MyPlate, she ate nothing from the food group that includes grains. fruit. milk and milk products. eggs.

fruit

A group of registered dietitians is planning to conduct a scientific study to investigate the effects of eating honey on school-age children's behavior. At first, the researchers will analyze the hypothesis. make observations. identify relationships between variables. gather data.

make observations

A scientist thinks she has discovered an essential nutrient for humans, because this substance is needed for the normal development of human cells. in most natural foods. required by cats and dogs. easily manufactured by chemists.

needed for the normal development of human cells

In the United States, food insecurity is most likely to affect adolescent boys experiencing a growth spurt. adult women who take birth control pills. older adults on fixed incomes. body builders who consume too many protein supplements.

older adults on fixed incomes

Eating diets that contain high amounts of certain kinds of fat raise the risk of developing heart disease. Thus, a diet that supplies an excessive amount of such fats is a ____ for heart disease. risk factor hypothetical variable nutritional determinant dietary modulator

risk factor