December 6, 2018

Six chips a serving

Q: Did you see there’s an exact number of chips that’s healthy?

A: Doesn’t it depend on how big they are?

Q: Apparently not. It’s from a Harvard professor!

A: You know, the more Harvard professors you meet, the less you think they’re automatically right about everything.

Q: It’s based on research! In the American Journal of Clinical Nutrition!

A: That’s more promising.  Link?

Q: 🤣

A: <sigh>. Ok, the story is originally from the New York Times, and they link

Q: Is it in people?

A: Yes

Q: Not randomised, probably.

A: No

Q: So they compared people who ordinarily eat just 6 chips in a serving with normal people and there were health differences? Where did they find the six-chip people?

A: It wasn’t a comparison of six chips to more than six.

Q: Ok, but still larger servings vs smaller servings?

A: No. People who eat fried potatoes more often (like 2-3 times per week) had a higher rate of death than people who ate them less often.

Q: I suppose that makes sense. Especially if you consider what sorts of meals you usually eat with fries.

A: They’d prefer you  focus your attention on the actual fries, not on anything else you eat.

Q: So that gives the message ‘fries are bad’. Why six?

A:  It’s not specified

Q: 🙄

Q: So he’s really saying NO SAFE LEVEL and RISK OF DEATH WITH EVEN ONE just like with bacon and alcohol and driving?

A: To be fair, he’s actually trying not to say that. Or even that normal servings of chips should be BANNED!!.  In fact,  he said later that he just wanted the option of a six-chip serving.

Q: And how popular is that likely to be?

A: Well, here’s the other result I got from searching for “six chips”

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Thomas Lumley (@tslumley) is Professor of Biostatistics at the University of Auckland. His research interests include semiparametric models, survey sampling, statistical computing, foundations of statistics, and whatever methodological problems his medical collaborators come up with. He also blogs at Biased and Inefficient See all posts by Thomas Lumley »

Comments

  • avatar
    duncan hedderley

    “Six chips a serving,
    Five healthhh stars,
    Four food groups,
    Three fatty acids,
    And a partridge in paired tree”

    5 years ago