| 100% | EPHEDRA | 7 | F.D.A.-banned supplement |
| 98% | EPHEDRA | 7 | Subject of a 2004 F.D.A. dietary supplement ban |
| 92% | EPHEDRA | 7 | F.D.A.-banned weight-loss supplement |
| 72% | LETTERGRADES | 12 | A B C D F |
| 71% | MARKS | 5 | A, B, C, D and F |
| 69% | MUSICNOTES | 10 | A B C D E F G |
| 69% | POOR | 4 | Deserving a D or F |
| 68% | NOTE | 4 | A, B, C, D, E, F or G |
| 67% | STS | 3 | A, B and F, e.g., in D.C. |
| 67% | GRADE | 5 | A, B, C, D or F, but not E |
| 67% | VITAMIN | 7 | A, B, C, D or E, but not F |
| 67% | EPHEDRA | 7 | F.D.A.-banned diet pill ingredient |
| 64% | VITAMINS | 8 | Dietary supplements containing A, B, D, for e.g. |
| 63% | LETTERS | 7 | a, b, c, d, e, f, g, h, i, j, k, l... |
| 63% | GRADE | 5 | A, B, C, D, or F ... or first, second, third, or fourth |
| 63% | WORSE | 5 | Like an F, vis-a-vis a D |
| 61% | WORSE | 5 | F, vis-a-vis D- |
| 60% | NOTES | 5 | In music, they are A, B, C, D, E, F and G |
| 60% | SCALE | 5 | C, D, E, F, G, A, B, e.g. |
| 59% | EPHEDRA | 7 | Banned supplement |
| 59% | MESSI | 5 | F.C. Barcelona star who has won the Ballon d’Or a record six times |
| 56% | AMIE | 4 | Many a fête d'anniversaire attendee |
| 56% | RDAS | 4 | F.D.A. figures |
| 56% | RDA | 3 | F.D.A. guideline |
| 56% | USRDA | 5 | F.D.A. guideline |
| 53% | PROHIBIT | 8 | Put a ban on |
| 53% | OUTLAW | 6 | Introduce a ban on |
| 53% | JUMBOCDS | 8 | F.D.I.C.-insured investments of a hundred thousand dollars or more |
| 53% | OCTAVE | 6 | Eight notes or C, D, E, F, G, A, B, C |
| 52% | EMBARGO | 7 | A ban on trade with another nation |