Top Weight Loss subreddits

Largest Weight Loss subreddits

Largest Weight Loss subreddits

#	Subreddit	Members	12-mo growth	Commenters / mo
1	r/loseit	4.22M	+3.4%	12,511
2	1 r/1200isplenty	667,291	+14%	4,377
3	W r/WeightLossAdvice	573,474	+12%	4,062
4	1 r/1500isplenty	312,753	+6.6%	533
5	r/Retatrutide	181,953	+256%	10,054
6	O r/Ozempic	148,804	+14%	2,228
7	r/Biohacking	143,853	–	14,674
8	r/WegovyWeightLoss	142,585	+36%	3,817
9	r/weightwatchers	125,466	+6.3%	509
10	r/Weightlosstechniques	118,963	+7.5%	350
11	r/PCOSloseit	64,413	+22%	716
12	r/mounjarouk	59,401	+37%	2,876
13	N r/Noom	59,332	+9.1%	205
14	r/BiohackingU	55,021	–	3,170
15	r/weightlossdiets	50,403	+7.7%	142
16	r/loseweight	49,813	+12%	24
17	r/1200isplentyketo	48,901	+1.7%	7
18	r/OzempicForWeightLoss	42,740	+13%	444
19	G r/GLPGrad	42,123	+128%	1,080
20	G r/glp1	39,618	+99%	1,095
21	r/GLP1ResearchTalk	32,650	–	2,557
22	r/postpartumprogress	29,015	+39%	926
23	B r/BeforeandAfter	28,925	+31%	434
24	G r/GLP1microdosing	28,463	–	1,796
25	r/WeightLossNews	27,779	–	2

Fastest growing Weight Loss subreddits

Member growth over 12 months, among subreddits that had at least 18,251 members a year ago.

Fastest growing Weight Loss subreddits

#	Subreddit	12-mo growth	Members gained	Members	Commenters / mo
1	r/Retatrutide	+256%	+130,800	181,953	10,054
2	G r/GLPGrad	+128%	+23,619	42,123	1,080
3	G r/glp1	+99%	+19,660	39,618	1,095
4	r/postpartumprogress	+39%	+8,153	29,015	926
5	r/mounjarouk	+37%	+16,149	59,401	2,876
6	r/WegovyWeightLoss	+36%	+37,819	142,585	3,817
7	B r/BeforeandAfter	+31%	+6,878	28,925	434
8	M r/MounjaroMaintenance	+25%	+4,557	22,907	385
9	r/PCOSloseit	+22%	+11,748	64,413	716
10	O r/Ozempic	+14%	+18,754	148,804	2,228
11	1 r/1200isplenty	+14%	+81,716	667,291	4,377
12	r/OzempicForWeightLoss	+13%	+5,008	42,740	444
13	W r/WeightLossAdvice	+12%	+63,327	573,474	4,062
14	r/loseweight	+12%	+5,451	49,813	24
15	N r/Noom	+9.1%	+4,948	59,332	205
16	r/weightlossdiets	+7.7%	+3,623	50,403	142
17	r/Weightlosstechniques	+7.5%	+8,325	118,963	350
18	1 r/1500isplenty	+6.6%	+19,349	312,753	533
19	r/weightwatchers	+6.3%	+7,450	125,466	509
20	r/loseit	+3.4%	+138,825	4.22M	12,511
21	r/wls	+2.4%	+573	24,866	80
22	r/1200isplentyketo	+1.7%	+840	48,901	7
23	O r/ownit	+1.7%	+362	22,247	2

Most members gained

Weight Loss subreddits that gained the most members

#	Subreddit	Members gained	12-mo growth	Members	Commenters / mo
1	r/loseit	+138,825	+3.4%	4.22M	12,511
2	r/Retatrutide	+130,800	+256%	181,953	10,054
3	1 r/1200isplenty	+81,716	+14%	667,291	4,377
4	W r/WeightLossAdvice	+63,327	+12%	573,474	4,062
5	r/WegovyWeightLoss	+37,819	+36%	142,585	3,817
6	G r/GLPGrad	+23,619	+128%	42,123	1,080
7	G r/glp1	+19,660	+99%	39,618	1,095
8	1 r/1500isplenty	+19,349	+6.6%	312,753	533
9	O r/Ozempic	+18,754	+14%	148,804	2,228
10	r/mounjarouk	+16,149	+37%	59,401	2,876
11	r/PCOSloseit	+11,748	+22%	64,413	716
12	r/Weightlosstechniques	+8,325	+7.5%	118,963	350
13	r/postpartumprogress	+8,153	+39%	29,015	926
14	r/weightwatchers	+7,450	+6.3%	125,466	509
15	B r/BeforeandAfter	+6,878	+31%	28,925	434
16	r/loseweight	+5,451	+12%	49,813	24
17	r/OzempicForWeightLoss	+5,008	+13%	42,740	444
18	N r/Noom	+4,948	+9.1%	59,332	205
19	M r/MounjaroMaintenance	+4,557	+25%	22,907	385
20	r/weightlossdiets	+3,623	+7.7%	50,403	142
21	r/1200isplentyketo	+840	+1.7%	48,901	7
22	r/wls	+573	+2.4%	24,866	80
23	O r/ownit	+362	+1.7%	22,247	2

Most active Weight Loss subreddits

People who comment in a month, the average of the three months ending September 2026.

Most active Weight Loss subreddits

#	Subreddit	Commenters / mo	Posts / mo	Members
1	r/Biohacking	14,674	3,260	143,853
2	r/loseit	12,511	3,015	4.22M
3	r/Retatrutide	10,054	3,996	181,953
4	1 r/1200isplenty	4,377	725	667,291
5	W r/WeightLossAdvice	4,062	2,023	573,474
6	r/WegovyWeightLoss	3,817	977	142,585
7	r/BiohackingU	3,170	530	55,021
8	r/mounjarouk	2,876	1,236	59,401
9	r/GLP1ResearchTalk	2,557	335	32,650
10	O r/Ozempic	2,228	526	148,804
11	r/RetatrutideWomen	2,192	1,054	25,784
12	G r/GLP1microdosing	1,796	557	28,463
13	G r/glp1	1,095	168	39,618
14	G r/GLPGrad	1,080	181	42,123
15	r/Wegovy	1,054	442	24,664
16	r/postpartumprogress	926	327	29,015
17	r/WeightlossJourney	833	921	20,684
18	r/BigEasyWeightLoss	798	264	10,779
19	r/PCOSloseit	716	257	64,413
20	1 r/1500isplenty	533	133	312,753
21	r/GLP1_loss100plus	513	84	8,789
22	r/weightwatchers	509	112	125,466
23	r/GLP1_BeforeAfter	491	193	11,251
24	r/OzempicForWeightLoss	444	120	42,740
25	B r/BeforeandAfter	434	378	28,925

More in Wellness

• Top Fitness subreddits
• Top Motivation & Self-Improvement subreddits
• Top Diet & Nutrition subreddits
• All topics

How these lists are made

• Members are the member counts measured in October 2026.
• Activity (commenters and posts per month) is the average of the three months ending September 2026. Posts by known bots are not counted.
• 12-month growth compares members now with members a year earlier. A subreddit is ranked by growth only if it already had at least 18,251 members a year ago (the median for subreddits with a known growth), so brand-new communities don't top the list from a base of zero. Subreddits with more monthly active users than 0.808 per member, a sign of inflated activity, are left out of the growth and activity lists.
• NSFW communities are excluded: those Reddit marks as 18+, those where most posts are NSFW, and the Adult Content topic.
• Topics follow Reddit's own community categories.
• The lists are rebuilt every month. Each list shows the top 25 (100 for the largest subreddits overall). Download all lists as CSV (free to reuse under CC BY 4.0, with a link to this page).