Exam 2: Evaluating Nutrition Information

Scientists who investigate lifestyle factors that influence the prevalence of obesity among different population groups are conducting a(n)____ study.

Pellagra is an infectious disease.

The ____ is responsible for ensuring the safety and effectiveness of medications.

Researchers are conducting a study to determine the effects of zinc supplements on the human immune system.The study involves providing pills that contain zinc to one group of human subjects,and pills that do not contain zinc or other active ingredients to another group of people.The pills that do not contain zinc are

A group of researchers wants to determine whether certain dietary factors are associated with the risk of attention deficit hyperactivity disorder (ADHD).The scientists follow a group of 500 healthy newborn babies for 10 years and collect health information as well as dietary practices for each child.At the end of the study period,the scientists analyze the data for correlations between the children's dietary practices and their likelihood of being diagnosed with ADHD.This is an example of a _____ study.

Which of the following kinds of studies would be the best to use when investigating whether cigarette smoking influences weight gain?

The physician who studied pellagra in 1914 was ______.

Dr.Joseph Goldberger's scientific finding about the cause of pellagra was not welcomed by members of the medical community.

Having a control group enables researchers to ______.

Which of the following periodicals features peer-reviewed articles?

A group of scientists conducts a scientific study to investigate dietary factors that influence the development of obesity.Which of the following activities is not likely to be a component of their research efforts?

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 ______.

Scientists study 200 adults who have type 2 diabetes,and 200 adults who have similar characteristics but do not have the disease.For 18 months,the researchers collect lifestyle information on all the study participants.According to the study's findings,the adults with type 2 diabetes were 25% less physically active than their counterparts who did not have type 2 diabetes.This is an example of a(n)_____ study.

A physician who hosts a popular TV show makes several nutrition-related claims during one of the programs.Which of the doctor's claims is a "red flag" of unreliable information?

Scientists conduct a study in which 100 adults with chronic diarrhea are divided into 2 groups of 50 people.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 the their bowel habits.This is an example of a(n)____ study.

A group of scientists would like to determine lifestyle factors that are associated with the development of asthma among American children.Based on this information,the researchers should design a(n)_____ study.

A group of scientists suspects that certain dietary practices are partially responsible for different rates of hypertension among adults of different ethnic/racial groups.To test their hypothesis,the researchers examine data concerning the different population groups' hypertension rates and their past dietary practices.This research is a _____ study.

The government agency that enforces consumer protection laws by investigating false or misleading health-related claims is the ______.

Which of the following websites is most likely a source of biased and unreliable nutrition information?

During a television interview,Dr.Ima Quack provides the following statement,"Most Americans suffer from nutritional-deficiency diseases and will develop cancer within the next 10 years because they are not taking my megavitamin formula therapy." Dr.Quack's statement is an example of a(n)______.