Exam 1: The Science of Nutrition

Scientists use many techniques to decrease bias in studies. What do scientists call the technique in which the participants do not know if they are receiving the actual treatment or a fake?

Which U.S.government agency certifies foods as grown and processed "organically"?

One of the limitations of epidemiologic studies is that the results cannot be interpreted as proving a(n) _____.

Individuals may or may not have control over __________, elements in their surroundings such as pollution and temperature.

What is the large, ongoing epidemiologic study to simultaneously monitor nutrition and health in the U.S. population called?

When the scientist conducting a study influences its results, that study is said to be flawed due to__________.

__________ studies involve the use of cells or environments that are not part of a living organism.

What are the major health-related nutrition issues in the U.S., and what actions could individuals take to improve the situation?

__________ studies involve the investigation of natural phenomena in a living organism.

Random assignment of participants to treatment or control groups is important because it distributes ____ equally among study groups.

Epidemiologic studies investigate causal relationships.

In the U.S., the Centers for Disease Control and Prevention (CDC) is responsible for

What do researchers call the shift from undernutrition to overnutrition or unbalanced nutrition as a society becomes more industrialized?

Carbohydrates contain C, H, O, and N while lipids contain only C, H, and O.

Phytochemicals are essential nutrients.

Suppose a human intervention study provides evidence that when adults consume 5 servings of fruits and vegetables their blood lipid levels are positively impacted. The most appropriate conclusion the researchers could make would be that this relationship between diet and blood lipids:

Maria has been asked to be a subject in a study to determine if additional vitamin A will promote the growth of healthy, strong fingernails. Since she wants the study to be as close to the “ideal” nutrition intervention study as possible, she will want to be sure that:

Vitamins and minerals are organic chemicals.

NHANES simultaneously monitors nutrition and _____ in the U.S.

A meal you had from a restaurant contained about 1,000 kcalories. How many additional kcalories would 11 grams of alcohol add to your meal?