About r/nutrition
In its own words:
A subreddit for the discussion of nutrition science. Macronutrients, micronutrients, vitamins, diets, and nutrition news are among the many topics discussed. Civil discourse is required.
Community guide
r/nutrition is for nutrition science discussion—macros, micros, vitamins, diets, and related news—with required civil discourse. Rank #137 (about 5.9 million subscribers). Rules ban dietary activism/crusading, wholesale science rejection, medical advice requests, personal diet-eval posts, blogspam, and require direct links; new/negative-karma accounts are restricted.
Fit
Science-framed nutrition talk. Sample ~9.4 ppd.
Versus fitness diet and medical advice rooms
Bodyweightfitness/Fitness optimise training. Medical advice belongs with clinicians—not here (explicit rule). Personal “evaluate my diet” posts are removed.
Practical pointers
Follow reddiquette; direct links; no self-promo blogspam; no medical advice; no crusading.
SubMouse Editorial
The community was created on Nov 17, 2008, which makes it 17 years old. Since Oct 26, 2026, it has gained 576 subscribers (+0.01%). It sits just behind r/technicallythetruth (#136) and ahead of r/dankmemes (#138) in our ranking.
What sets r/nutrition apart
Compared with other large communities, r/nutrition leans heavily on text posts (100% of recent posts; the typical Top 100 subreddit sits at 34%). Relative to its huge audience, posting is calm — around 1.6 new posts a day per million members, which puts it in the quietest fifth of the Top 100. A good post has less competition here.
Subscriber growth
Between Sep 19, 2026 and Nov 2, 2026, r/nutrition climbed from 5,910,514 to 5,914,866 subscribers (+4.4K, +0.07%). That is about 99 new members per day. The chart uses our weekly snapshots (9 so far), so it gets longer every week.
What r/nutrition talks about
We read the titles of 48 recent posts (Oct 29–Nov 4), the words that come up most are “whole”, “good”, “foods”, “walnuts” and “actually”. Other frequent themes are nuts, food, eating, bars, eat and diet. Recurring phrases include “psyllium husk”, “whole grains” and “insoluble fiber”. By format, 100% are text posts.
Activity and best time to post
r/nutrition gets about 9.4 new posts a day. The public archive holds 159,285 posts and 1,866,948 comments in total, about 11.7 comments per post. Last week the busiest day was Monday (10 posts) and the quietest was Friday (4). Posting peaks around 17:00 UTC and is lowest around 05:00 UTC.
Rules of r/nutrition
The moderators of r/nutrition list 8 rules. In short:
- Follow reddiquette
- No dietary activism / crusading
- No all science rejection or wholesale conspiracy comments
- No requesting or giving advice related to medical concerns
- No personal situation or diet eval posts
- No blogspam or self-promotion
- Links must be direct
- New and negative karma accounts are restricted
How to join
Open reddit.com/r/nutrition 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 big is r/nutrition?
r/nutrition has 5,914,866 subscribers (Nov 2, 2026), which makes it the #137 safe-for-work subreddit in the SubMouse ranking. It added 4,352 members between Sep 19, 2026 and Nov 2, 2026.
How old is r/nutrition?
r/nutrition was created on Nov 17, 2008, so it has been around for 17 years.
How active is r/nutrition?
Moderately: r/nutrition gets about 9.4 new posts a day (average of the last four weeks). Over its lifetime the archive counts 159,285 posts and 1,866,948 comments.
When is r/nutrition most active?
Based on post counts from Oct 29, 2026 to Nov 4, 2026, the busiest day was Monday and the quietest Friday, and most posts arrive around 17:00 UTC, with the fewest around 05:00 UTC. More posts also means more competition, so a quieter hour can help a post get noticed.
What is r/nutrition about?
The community describes itself as: “A subreddit for the discussion of nutrition science. Macronutrients, micronutrients, vitamins, diets, and nutrition news are among the many topics discussed. Civil discourse is required.” Recent post titles often mention whole, good, foods, walnuts and actually. Most posts are text posts (100%).
Is r/nutrition safe for work?
Yes. Reddit does not mark r/nutrition as an 18+ (NSFW) community. SubMouse lists safe-for-work subreddits only.
How do I post on r/nutrition?
Join the community on Reddit first, then use “Create post”. r/nutrition accepts text posts only, with galleries enabled. It has 8 posted rules, starting with: “Follow reddiquette”; “No dietary activism / crusading”; “No all science rejection or wholesale conspiracy comments”. Moderators remove posts that break the rules, so read them in the sidebar before posting.
Which communities are like r/nutrition?
Communities with similar topics include r/keto (4M), r/HealthyFood (3.5M), r/psychology (4.9M), r/ContagiousLaughter (13.2M) and r/science (34.6M).
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/nutrition.