| NoFap | Porn Addiction and Compulsive Sexual Behavior Peer Support Forum - r/NoFap | 1,182,103 |
| Drugs | A Community of People Who Look Out for Each Other | 1,123,721 |
| intermittentfasting | Intermittent Fasting | 952,522 |
| GYM | GYM | 939,361 |
| pelotoncycle | Peloton Community | We're better together | 838,281 |
| shrooms | Shrooms and the Psychedelic Experience | 750,903 |
| beyondthebump | Baby Bumps Graduates | 740,864 |
| AskDocs | Medical Questions | 684,089 |
| Volumeeating | Volumeeating | 652,223 |
| sleep | Community for Better Sleep | 635,314 |
| stopdrinking | /r/stopdrinking: A support group in your pocket! | 578,066 |
| powerlifting | Powerlifting | 575,499 |
| 1200isplenty | Food for small bodies | 550,432 |
| fasting | Fasting: willingly abstaining for a period of time | 523,675 |
| lifting | Lifting | 511,474 |
