Transcript for FiveThirtyEight: The problem with nutrition studies

Welcome to our introductions of food frequency questionnaire. Unfamiliar with the FFQ. Well it's the underpinning of nutrition scientific establishment for over fifty years. Your study about a food being linked to a disease or outcome it's probably a study that uses the at that you. So what do you say we culture there. The F fifty was going to ask you all about how much and how often meet certain types who's. Ready to start Walter. How often do you rides. Twice a week that and how much rice and consume do. One cup of rice well map that was easy. Walter. Do you eat she's. A very good choice. So windy weak keys we DC UV 123. Or four slices. Yes slices. You know the only way that people consume teens. Oh I'm sorry you have to choose one of the following 12. Three or four slices. Thank you for this crucial insight. It will be the foundation of our assessment regarding your back in some decisions to be here. Moving on and you seem like attack a fellow who enjoyed tonight's stack of ribs. How much do you usually consume in a single set and Walter I'm going to need you to cooperate here. The epic tune whose hands during cops. Yes of course cups the main way we measure quantity of ribs. So how many cups of ribs is backed. We really need an exact answer here Walter. The food frequency questionnaire will use this data to establish crucial judgments regarding your well being based on your ability to accurately reply to these questions. I. And here we are two cups of ribs the progress of nutritional science center. Well wolf there I hope you find the rest of your experience thinking at that human lightning indeed. Bon appetite. As you can see. Precision and reliability of the FFQ it's a solid foundation on which to build the entire scientific nutrition and journalistic establishment. A.

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