| to this regulation | 16 | transitive-object |
| to building muscle | 16 | purpose |
| to a healthy diet | 14 | other |
| protein → be → key | 145 |
| protein → be → the key | 55 |
| protein → hold → the key | 18 |
| protein → serve as → key driver | 4 |
| protein → be → important key | 3 |
| negative | neutral | positive |
| 0.048 | 0.525 | 0.427 |
| Raw frequency | 225 |
| Normalized frequency | 0.677 |
| Modifier score | 0.667 |
| Perplexity | 113.261 |