Logical ReasoningDifficulty: Hard

PT109 S3 Q24 Explanation

Dietician: “The French Paradox” refers

A free, expert breakdown of this official LSAT Logical Reasoning question.

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Stimulus

Dietician: “The French Paradox” refers to the unusual concurrence in the population of France of a low incidence of heart disease and a diet high in fat. The most likely explanation is that the French consume a high quantity of red wine, which mitigates the ill effects of the fat they eat. you want to be healthier without cutting fat intake, drink more red wine.

What this question is testing

Weaken

Your task

Find the choice that makes the argument's conclusion less likely to be true.

Common trap

Answers that look negative but attack a claim the argument never relied on.

Winning move

Find the assumption the argument depends on, then pick the choice that undermines it.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
24.

Which one of the following statements, if true, most seriously undermines the conclusion of

Answer choices

  1. Unclear Impact12% picked this

    French men consume as much red wine as French women do, yet French men have a higher rate of heart

    Without knowing whether French men have more / similar / less fat in their diet to French women, it's hard to know what effect this would have. The risk factors for heart disease might be higher for French men in general, and red wine reduces their risk but not down to the level of French women who drink red wine.

  2. Correct60% picked this

    A greater intake of red wine among North Americans would likely lead to a higher incidence of liver

    Why this is right

    This is objecting to the move from "red wine can lower your risk of heart disease" to "red wine can make you healthier". By bringing up some non-heart related health dangers of drinking more red wine, this answer is undermining the Conclusion. Would people really end up healthier if they traded a lower risk of heart disease for a higher risk of liver and other illnesses?

    Skill tested: Weaken · how this choice captures the argument's function is the move to repeat next time.

  3. Too Weak5% picked this

    Not all French people have a diet that includes large amounts of fat and a high

    "Not all A's are B" = At least one (some) A is not B. Does it hurt this argument to say, "There is at least one French person that does not have a diet that includes large amounts of fat and a high quantity of red wine"? No, the author was never assuming that every single person in France had high fat / high red wine diet. She's just generalizing about the population in an "on average" sort of way. Answers like this that only provide "at least one data point" are almost always wrong on Strengthen, Weaken, and Paradox, because they're too weak to have much impact.

  4. Out of Scope: different recommendation4% picked this

    All evidence suggests that the healthiest way to decrease the chance of heart disease is to exercise and keep

    The author didn't promise that her recommendation was the healthiest thing you could do. She is only claiming that North Americans would be healthier, all other things being equal, if they drank more red wine. If drinking more red wine would make North Americans healthier than they are now, then her conclusion was correct and she wins the case. It doesn't matter if some other course of action would be even more healthy than the one the author is recommending, because the author has only claimed that drinking more red wine would be an improvement, not that it would be the best thing to do.

  5. Unclear Impact18% picked this

    Many other regions have much lower rates of heart disease than France, though their populations consume even less red

    Like with (A), we can't judge this comparison without knowing whether these other regions have levels of fat in their diet comparable to people in France.

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