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Flashcards in Evaluating Nutrition Research Deck (5)
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1

What are the three types of study designs in nutrition science?

1. Correlational - quantifying the R^2 relationship between two variables
2. Casual/comparative - attempting to establish causality but the independent variable is not under control of the researcher
3. Experimental - rarely done, independent variable is under control of the researcher. Problem is you don't know all the confounding variables

2

Why is it difficult to design many studies in nutrition?

Ethical considerations in running true experiments. Not all results in rats are generalizable.

3

What are the reasons why people might believe in quackery?

1. Ignorance - ignorant regarding their own claims
2. Placebo effect
3. Regression fallacy - something "helped" when they would've gotten better anyway
4. Fear of side effects / cost
5. Desperation for a treatment to work
6. Distrust in conventional medicine
7. Conspiracy theories
8. Research fraud for a political / commercial agenda

4

What are the common reasons for NUTRITION study misinformation?

1. Signal to noise - risk we are looking for is so small that it can be unable to see real changes, data just looks like noise. What is the real signal?
2. Method standarization - there is little agreement on what the gold standard for experimental standards are
3. We only publish interesting and exciting results

5

Why is it so difficult to inform people about proper nutrition?

Everyone eats, and has a preconceived notion of what's good and bad. Also, everyone who shouldn't be commenting on nutrition tends to have a large voice, which makes communication difficult