About r/keto
In its own words:
The Ketogenic Diet is a low carbohydrate method of eating. /r/keto is place to share thoughts, ideas, benefits, and experiences around eating within a Ketogenic lifestyle. Helping people with diabetes, epilepsy, autoimmune disorders, acid reflux, inflammation, hormonal imbalances, and a number of other issues, every day.
Community guide
r/keto (#241, about 4 million) is for thoughts, ideas, benefits, and experiences around ketogenic low-carb eating. Rules say read the FAQ first, stay on topic, ban cheat posts, low-effort posts, self-promo/spam, and giving/soliciting medical advice, and require respectful, accurate posts. Text (~10.9 ppd).
FAQ first, no cheat spectacle
Read the FAQ before posting. Cheat posts are removed; stay on ketogenic lifestyle topic.
Not medical advice
No giving or soliciting medical advice. Be respectful and accurate.
Practical pointers
No self-promo/spam or low-effort posts. Text-only samples in the window.
SubMouse Editorial
The community was created on May 27, 2010, which makes it 16 years old. Since Oct 26, 2026, it has gained 417 subscribers (+0.01%). It sits just behind r/Fantasy (#240) and ahead of r/maybemaybemaybe (#242) in our ranking.
What sets r/keto apart
r/keto is far more text-driven than most big subreddits: 100% of its recent posts are text posts, against a median of 34% across the Top 100.
Subscriber growth
Between Sep 19, 2026 and Nov 2, 2026, r/keto went up from 3,958,279 to 3,960,825 subscribers (+2.5K, +0.06%). That is about 58 new members per day. The chart uses our weekly snapshots (9 so far), so it gets longer every week.
What r/keto talks about
We read the titles of 64 recent posts (Oct 29–Nov 4), the words that come up most are “zero”, “carb”, “weight”, “protein” and “eat”. Other frequent themes are feel, actually, needed, eating, wondering and long. Recurring phrases include “feel lost”. By format, 100% are text posts.
Popular post flairs: Help (14), Success Story (4), Medical (4), Food and Recipes (4), Tips and Tricks (2), Science and Media (1).
Activity and best time to post
r/keto gets about 11 new posts a day. The public archive holds 517,555 posts and 7,033,842 comments in total, about 13.6 comments per post. Last week the busiest day was Friday (15 posts) and the quietest was Tuesday (5). Posting peaks around 10:00 UTC and is lowest around 04:00 UTC.
Rules of r/keto
The moderators of r/keto list 7 rules. In short:
- Read The FAQ Before Posting
- Stay on Topic
- No Cheat Posts
- Be Respectful and Accurate
- No Low Effort Posts
- No Self Promotion/Spam
- No Giving or Soliciting Medical Advice
How to join
Open reddit.com/r/keto and press “Join”. Read the community rules in the sidebar before you post: every subreddit is run by its own volunteer moderators.
Frequently asked questions
How many members does r/keto have?
r/keto has 3,960,825 subscribers (Nov 2, 2026), which makes it the #241 safe-for-work subreddit in the SubMouse ranking. It added 2,546 members between Sep 19, 2026 and Nov 2, 2026.
When was r/keto created?
r/keto was created on May 27, 2010, so it has been around for 16 years.
Is r/keto still active?
Yes. r/keto gets about 11 new posts a day (average of the last four weeks). Over its lifetime the archive counts 517,555 posts and 7,033,842 comments. In a sample of 64 recent posts we counted 59 different authors.
What is the best time to post in r/keto?
Based on post counts from Oct 29, 2026 to Nov 4, 2026, the busiest day was Friday and the quietest Tuesday, and most posts arrive around 10:00 UTC, with the fewest around 04:00 UTC. More posts also means more competition, so a quieter hour can help a post get noticed.
What kind of posts are on r/keto?
The community describes itself as: “The Ketogenic Diet is a low carbohydrate method of eating. /r/keto is place to share thoughts, ideas, benefits, and experiences around eating within a Ketogenic lifestyle. Helping people with diabetes, epilepsy, autoimm…” Recent post titles often mention zero, carb, weight, protein and eat. Most posts are text posts (100%).
Is r/keto SFW?
Yes. Reddit does not mark r/keto as an 18+ (NSFW) community. SubMouse lists safe-for-work subreddits only.
What are the rules of r/keto?
Join the community on Reddit first, then use “Create post”. r/keto accepts text posts only. It has 7 posted rules, starting with: “Read The FAQ Before Posting”; “Stay on Topic”; “No Cheat Posts”. Moderators remove posts that break the rules, so read them in the sidebar before posting.
What subreddits are similar to r/keto?
Communities with similar topics include r/EatCheapAndHealthy (11.5M), r/homeautomation (4.6M), r/starterpacks (6.5M), r/nutrition (5.9M) and r/AskWomen (5.8M).
Stats from public data (data updated Nov 2, 2026; activity, rules and archive totals via the Arctic Shift archive, Nov 6, 2026). Point and comment counts are archive snapshots and can be lower than on Reddit today. SubMouse is an independent directory and is not affiliated with Reddit or the moderators of r/keto.