Top Diet & Nutrition subreddits

Largest Diet & Nutrition subreddits

Largest Diet & Nutrition subreddits

#	Subreddit	Members	12-mo growth	Commenters / mo
1	r/nutrition	5.91M	+1.1%	1,863
2	r/keto	3.96M	+0.8%	3,411
3	r/intermittentfasting	1.02M	+5.3%	3,333
4	r/Volumeeating	787,418	+14%	4,121
5	K r/ketorecipes	637,078	+2.1%	536
6	r/fasting	577,561	+7.0%	2,753
7	r/ketoscience	542,775	+0.6%	99
8	r/fitmeals	450,868	+6.5%	1,187
9	r/CICO	339,661	+12%	2,810
10	r/ketogains	215,833	+1.9%	72
11	r/sugarfree	201,245	+8.5%	772
12	r/omad	197,742	+8.3%	767
13	r/ketobeginners	186,570	+2.1%	110
14	r/caloriecount	182,930	+26%	4,267
15	P r/Paleo	172,785	+1.5%	82
16	r/zerocarb	131,165	+1.2%	9
17	r/Keto_Food	129,704	+2.3%	148
18	r/DesiKeto	117,040	+0.8%	19
19	X r/xxketo	115,394	+1.8%	96
20	r/carnivorediet	105,214	+21%	3,175
21	r/FODMAPS	99,264	+18%	1,203
22	r/diet	98,459	+88%	2,185
23	r/lowcarb	97,486	+8.6%	374
24	r/carnivore	96,351	+5.3%	82
25	r/ShittyRestrictionFood	86,501	+29%	1,143

Fastest growing Diet & Nutrition subreddits

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

Fastest growing Diet & Nutrition subreddits

#	Subreddit	12-mo growth	Members gained	Members	Commenters / mo
1	r/diet	+88%	+46,161	98,459	2,185
2	r/MacroFactor	+45%	+20,356	65,792	1,458
3	r/ScientificNutrition	+29%	+17,152	76,378	701
4	r/ShittyRestrictionFood	+29%	+19,297	86,501	1,143
5	r/caloriecount	+26%	+37,320	182,930	4,267
6	r/blueprint_	+23%	+8,526	44,855	541
7	r/carnivorediet	+21%	+18,374	105,214	3,175
8	r/healthyeating	+20%	+5,694	33,688	204
9	D r/dietetics	+20%	+6,493	39,505	893
10	r/dairyfree	+19%	+10,210	63,209	1,188
11	r/AnimalBased	+18%	+4,676	30,755	313
12	r/FODMAPS	+18%	+14,808	99,264	1,203
13	A r/AlternateDayFasting	+16%	+4,484	31,697	210
14	r/StopEatingSeedOils	+16%	+7,659	55,878	1,090
15	r/Dryfasting	+15%	+2,837	21,300	269
16	D r/Dietandhealth	+15%	+3,879	30,068	103
17	r/Volumeeating	+14%	+98,445	787,418	4,121
18	r/Water_Fasting	+13%	+3,626	30,873	239
19	r/WaterFasting	+13%	+3,374	29,012	209
20	r/Huel	+12%	+4,527	40,791	980
21	A r/AutoImmuneProtocol	+12%	+2,998	27,224	202
22	r/CICO	+12%	+37,134	339,661	2,810
23	r/PSMF	+9.3%	+1,730	20,315	94
24	r/DietTea	+9.3%	+2,186	25,699	81
25	r/lowcarb	+8.6%	+7,706	97,486	374

Most members gained

Diet & Nutrition subreddits that gained the most members

#	Subreddit	Members gained	12-mo growth	Members	Commenters / mo
1	r/Volumeeating	+98,445	+14%	787,418	4,121
2	r/nutrition	+62,895	+1.1%	5.91M	1,863
3	r/intermittentfasting	+51,126	+5.3%	1.02M	3,333
4	r/diet	+46,161	+88%	98,459	2,185
5	r/fasting	+38,007	+7.0%	577,561	2,753
6	r/caloriecount	+37,320	+26%	182,930	4,267
7	r/CICO	+37,134	+12%	339,661	2,810
8	r/keto	+33,241	+0.8%	3.96M	3,411
9	r/fitmeals	+27,442	+6.5%	450,868	1,187
10	r/MacroFactor	+20,356	+45%	65,792	1,458
11	r/ShittyRestrictionFood	+19,297	+29%	86,501	1,143
12	r/carnivorediet	+18,374	+21%	105,214	3,175
13	r/ScientificNutrition	+17,152	+29%	76,378	701
14	r/sugarfree	+15,728	+8.5%	201,245	772
15	r/omad	+15,083	+8.3%	197,742	767
16	r/FODMAPS	+14,808	+18%	99,264	1,203
17	K r/ketorecipes	+13,038	+2.1%	637,078	536
18	r/dairyfree	+10,210	+19%	63,209	1,188
19	r/blueprint_	+8,526	+23%	44,855	541
20	r/lowcarb	+7,706	+8.6%	97,486	374
21	r/StopEatingSeedOils	+7,659	+16%	55,878	1,090
22	D r/dietetics	+6,493	+20%	39,505	893
23	r/healthyeating	+5,694	+20%	33,688	204
24	r/carnivore	+4,865	+5.3%	96,351	82
25	r/AnimalBased	+4,676	+18%	30,755	313

Most active Diet & Nutrition subreddits

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

Most active Diet & Nutrition subreddits

#	Subreddit	Commenters / mo	Posts / mo	Members
1	r/caloriecount	4,267	1,669	182,930
2	r/Volumeeating	4,121	498	787,418
3	r/keto	3,411	465	3.96M
4	r/intermittentfasting	3,333	477	1.02M
5	r/carnivorediet	3,175	711	105,214
6	r/CICO	2,810	203	339,661
7	r/fasting	2,753	879	577,561
8	r/protein_deals	2,527	985	35,455
9	r/diet	2,185	689	98,459
10	P r/proteinsnack	2,075	346	27,340
11	r/rawprimal	1,871	1,010	10,712
12	r/nutrition	1,863	567	5.91M
13	P r/Protein	1,593	383	28,309
14	r/MacroFactor	1,458	442	65,792
15	r/FODMAPS	1,203	233	99,264
16	r/dairyfree	1,188	178	63,209
17	r/fitmeals	1,187	307	450,868
18	r/ShittyRestrictionFood	1,143	407	86,501
19	r/StopEatingSeedOils	1,090	131	55,878
20	r/Huel	980	190	40,791
21	D r/dietetics	893	266	39,505
22	r/Preworkoutsupplements	852	320	19,833
23	r/sugarfree	772	192	201,245
24	r/omad	767	223	197,742
25	r/raypeat	749	240	16,537

More in Wellness

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• 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).