medium · LSAT Logical Reasoning
A nutritionist observed that individuals who regularly consume blueberries perform better on memory tests than those who do not. The nutritionist concluded that the antioxidants found in blueberries protect brain cells from oxidative stress, thereby enhancing cognitive function.
Which one of the following, if true, most seriously weakens the nutritionist's argument?
- People who eat blueberries regularly are also far more likely to exercise aerobically and keep healthy sleep patterns.
- Antioxidants can also be found in several other fruits, such as strawberries and raspberries.
- Blueberries are the single most expensive fruit sold in every grocery store in the country.
- The study included participants drawn from several different age groups and geographic regions.
- Laboratory studies have shown that the specific antioxidants in blueberries can neutralize oxidative compounds in brain tissue.
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More LSAT Logical Reasoning practice
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