Strengthening Arguments on Omega-3 and Cognitive Function

Very Hard Critical Reasoning Strengthening Data Arguments

A prominent health magazine asserts that a diet rich in omega-3 fatty acids significantly improves cognitive function and memory in adults. Following this assertion, several studies were conducted to support their claim. One study observed that participants who consumed fish oil supplements showed a 20% improvement in cognitive assessments compared to those who did not.

However, critics of the magazine's claim argue that the improvement could be due to other lifestyle factors such as increased physical activity or higher educational levels among those who took the supplements.

To bolster the magazine's position, which of the following options would most effectively strengthen the argument that omega-3 fatty acids are beneficial for cognitive function?

A study shows that participants with lower physical activity levels still improved their cognitive scores after taking omega-3 supplements.

Research indicates that diets high in omega-3 lead to lower rates of dementia among older adults.

Participants who improved their cognitive function were all educated to at least a college level.

A comprehensive review finds that cognitive improvements in test subjects who consume omega-3 rich foods are consistent across multiple demographics.

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