| Rank | Board name and description | Posts | Members |
| 1 | Low Carb Friends Low carb diets discussion forum | 8004470 | 71647 |
| 2 | Elite Fitness Diet and fitness and bodybuilding message boards | 7812576 | 166291 |
| 3 | Low Carber Diet and low carb support message boards | 6771137 | 107946 |
| 4 | Dutch Bodybuilding Bodybuilding forum (in Dutch) | 2782951 | 49840 |
| 5 | Muscle Talk Bodybuilding and nutrition forums | 2613313 | 32146 |
| 6 | Provida Weight loss and health message boards | 2273636 | 196251 |
| 7 | Three Fat Chicks Weight loss Forum | 1954986 | 85941 |
| 8 | Wannabe Big Forums Bodybuilding message boards | 1899736 | 45266 |
| 9 | Bodyweb.it Italian bodybuilding forums | 1897474 | 12924 |
| 10 | Pakkotoisto Finnish bodybuilding forum | 1875561 | 44114 |
| 11 | BBS zene Fitness & bodybuilding forum (in German) | 1648050 | 124209 |
| 12 | Imperium Sportu Sports message board (in polish) | 1459961 | 40105 |
| 13 | Abnehmen Weight loss forums | 870942 | 20026 |
| 14 | MiniMins Weight loss support forum | 647118 | 8189 |