老年人粗粮吃得越多越好是真的吗

This pattern shows that as one thing increases or changes, another result also increases or changes. It is commonly used to express proportional change.

This pattern is used to show concession: even though the first part is true, the second part still happens. In this text, it introduces a warning after acknowledging a benefit.

根据 is used to indicate the basis, source, or standard for a statement, judgment, or action. It often introduces official documents, data, or rules.

This pattern connects two advantages, qualities, or actions that both apply at the same time. It is often used to show a balanced or ideal result.

In this text, 是……的 is used to make a firm judgment or conclusion about suitability. It adds emphasis to the speaker's assessment.