Inference from Dietary Fiber Study

Very Hard Must Be True / Most Strongly Supported Inference Support

A recent study explored the relationship between dietary fiber intake and heart disease risk among middle-aged adults. The researchers found that participants who consumed higher amounts of dietary fiber had significantly lower levels of LDL cholesterol. Additionally, those with higher fiber intake reported lower instances of hypertension and were less likely to develop type 2 diabetes over a ten-year period. The researchers concluded that fiber may play an essential role in reducing heart disease risk and improving overall cardiovascular health.

Based on these findings, which of the following statements must be true?

Individuals who consume less fiber are at a higher risk for developing heart disease.

Increasing dietary fiber intake will automatically lower LDL cholesterol levels in all individuals.

Lower LDL cholesterol levels are associated with a reduced incidence of heart disease.

The benefits of dietary fiber in reducing the risk of heart disease apply only to middle-aged adults.

All individuals who consume high amounts of dietary fiber will not develop type 2 diabetes.

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