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Scientific Question

"scientists think that taking vitamin D supplements regularly is an effective way to reduce the risk of colon cancer."

Population Study

"I'm in a group of healthy people who are being studied for the next 10 years. As participants in the study, scientists have us complete surveys about our personal medical histories, environmental exposures, and dietary practices.

Placebo

"im a subject in this study, but I think the experimental pill that the researchers gave to me to take each day doesn't contain anything that reduces my risk of colon cancer."

Treatment

"in an earlier study involving laboratory rats, adding a daily vitamin D supplement to the animals' diet for 12 months reduced the risk of cancer in the rodents."

Avoiding research bias in studies is important when scientists collecting reliable information that can be used by the public. Check all of the situations that are likely to indicate research bias.

an organization representing dairy farmers provides a monetary grant to a researcher who will study whether drinking three cups of milk per day promotes weight loss

Which of the following statements is very likely to be a "red flag" that signals nutrition misinformation?

liver-toxo-flush was invented by a team of dedicated scientists who were concerned about the clogging effects that the american diet has on liver health

Which of the following statements is very likely to be a "red flag" that signals nutrition misinformation?

organicatron brand potatoes are 100% safe to eat, because they're grown without the use of the unnatural pest-killing chemicals that most american potato growers use on their crops

Which of the following statements is very likely to be a "red flag" that signals nutrition misinformation?

proteosmilk is made from 100% purified proteins and has been clinically tested at a major U.S. university to be safe and effective

Not reliable source of nutrition information

website that promotes and sells caffeine pills to prevent exhaustion during physical workouts

Double-blind study

"im a subject in this study. I can't tell if I'm in the control group or the treatment group, and the researchers also don't know which group I'm in."