medium · LSAT Logical Reasoning
A high-fiber diet is necessary for maintaining optimal digestive health. Therefore, if one maintains optimal digestive health, one must have a high-fiber diet.
The reasoning in the argument is:
- Sound, because saying fiber is required for digestive health already means anyone with that health has the fiber.
- Unsound, because it overlooks the several other dietary and lifestyle factors that also contribute to digestive health.
- Unsound, because it treats a condition that is merely necessary for the health as though it were fully sufficient.
- Unsound, because it confuses the order of the requirement, wrongly making the diet the result rather than the precondition.
- Unsound, because no single isolated dietary factor could ever genuinely be required for maintaining digestive health.
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More LSAT Logical Reasoning practice
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