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Diet and nutrition subreddits

We found 72 active diet and nutrition subreddits: communities with at least one new post a day on average in September 2026, ranked by members. The largest is r/EatCheapAndHealthy with 11.5M members. The busiest is r/BulkOrCut, with 2,451 posts last month. In 9 of the 49 we could measure, a brand-new account's post usually stays up: they remove 17% or fewer of posts from accounts under a week old.

Data for 72 communitiesDownload CSV

Filter it by your account age and karma, the audience you want and the best time to post.

All active diet and nutrition subreddits, by members

Diet and nutrition subreddits
#SubredditMembersPosts / monthMember growth, 12 moMedian author ageWomenPosts with a replyNew-account posts removedLinks
1r/EatCheapAndHealthy↗Eating healthy on a cheap budget11.5M379+1%3155%65%100%No
2r/nutrition↗A subreddit for the discussion of the science of nutrition. Macronutrients, micronutrients, human metabolism and digestion, nutrition news and research are among the many topics discussed. Civil dis5.91M394+1%2946%70%Min. age/karmaNo
3r/keto↗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 diabete3.96M413+1%3146%85%Min. age/karmaNo
4r/intermittentfasting↗Intermittent Fasting (IF) is way of eating that restricts *when* you eat, usually on a daily or weekly schedule. People engage in IF to reap the many benefits to health, fitness, and mental clarity. 1.02M464+5%3146%93%Min. age/karmaYes
5r/Volumeeating↗new-account friendlyMaximum food for minimum calories.787K423+14%3170%100%12%Yes
6r/1200isplenty↗Making 1,200 calories feel like plenty. Healthy weight loss, realistic meals, and a supportive community. NOTE: we have a 0 tolerance policy when it comes to ED content. Violators will be banned. 667K626+14%2878%85%41%Yes
7r/ketorecipes↗A community for sharing recipes for meals, drinks, snacks, and desserts that fit into a ketogenic diet. Questions about keto? Also check out /r/keto!637K51+2%3249%100%43%Yes
8r/Supplements↗A subreddit designed for discussion of supplements and nutraceuticals; for health, performance, or any intended (or not intended) purpose. Not a place for discussion of illicit and illegal compounds.624K1,727+30%3036%83%Min. age/karmaYes
9r/fasting↗A fast is "a period of such abstention or self-denial". For most fasts, there are no set rules on when to start or how long they should last. Your own instincts are usually your best guide. A fast ca578K715+7%2947%92%Min. age/karmaYes
10r/PlantBasedDiet↗Home for all Plant-Based eaters!546K160+7%3261%92%99%Yes
11r/ketoscience↗r/KetoScience is dedicated to being the center for online discussion on the latest scientific discoveries in the broad and expanding role of the ketogenic diet in reversing chronic disease. We post RC543K74+1%3437%40%–Yes
12r/gainit↗EAT MORE FOOD AND READ THE RULES AND SIDEBAR BEFORE YOU POST!484K194+4%2412%91%Min. age/karmaYes
13r/fitmeals↗Your online kitchen for fitness enthusiasts, people looking to eat healthier, and the like.451K310+6%2939%59%69%Yes
14r/CICO↗A place to discuss anything related to calorie-counting!340K176+12%3167%78%Min. age/karmaYes
15r/1500isplenty↗A sub about eating on 1500 calories total per day.313K132+7%2973%66%Min. age/karmaYes
16r/veganfitness↗The place to come and discuss vegan fitness, bodybuilding, and health.233K325+10%3042%78%93%Yes
17r/sugarfree↗Sugar is made of two parts: glucose, your body’s fuel, and fructose — a powerful metabolic switch that drives cravings, drains energy, increases fat storage, and blocks insulin sensitivity. This commu201K170+8%3168%82%22%Yes
18r/omad↗Welcome to the OMAD (One Meal a Day) community! Dive into a space dedicated to those practicing, curious about, or seeking support for the OMAD lifestyle. Whether you're here for weight loss, health b198K191+8%3052%89%19%Yes
19r/ketobeginners↗A subreddit for KETO diet beginners to share their stories, ask questions and get support from other members. Note: This community is for educational purposes only and does not constitute medical a187K53+2%3461%86%Min. age/karmaYes
20r/caloriecount↗new-account friendlyA Sub-Reddit for people who are managing weight through control of calorie intake.183K1,562+26%2565%78%7%Yes
21r/Keto_Food↗Welcome to r/Keto_Food, a subreddit where users may log their meals for accountability or share recipes. This is a great place to discover new keto foods and learn from other ketoers' meals!130K42+2%3356%66%–Yes
22r/CleanEating↗Clean Eating tips and tricks128K772+889%2983%74%21%Yes
23r/weightwatchers↗A community for news, support, and helpful links regarding the #1 doctor-recommended weight-loss program, Weight Watchers.125K95+6%3583%80%27%Yes
24r/1200isjerky↗Add a laughing cow wedge to some zucchini noodles for a light and satisfying alfredo dish!124K100+26%2681%90%45%Yes
25r/Peptidesource↗THE OFFICIAL LONG-STANDING PEPTIDE RESEARCH SUBREDDIT. This is a community for discussing peptide research and to exchange peptide related discussion that is within Reddit's and this subreddit's ru113K583+180%3640%88%Min. age/karmaYes
26r/BulkOrCut↗This is a serious sub for anyone that wants to know whether they should bulk or cut for cosmetic appearances, general health, and/or fitness goals, it is tailored to newcomers to the fitness community110K2,451+38%2410%80%Min. age/karmaNo
27r/carnivorediet↗new-account friendlyThis group is for sharing Carnivore Diet success stories and providing positive news and information regarding Carnivory. However, you define your Carnivore Diet is fine by me. That said this is not a105K578+21%3335%93%11%Yes
28r/FODMAPS↗Share stories, questions and advice regarding all things FODMAP, IBS, digestive distress related to diet. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Read the pinned mod post before posting. ~~~~~~~~~~~~~~~~~~99K246+18%3268%97%19%Yes
29r/diet↗Welcome to /r/Diet: a place to discuss diets and nutrition. Join us on Discord! https://discord.gg/diet98K686+88%2545%99%Min. age/karmaYes
30r/lowcarb↗Looking for a community that's passionate about low-carb living? Look no further than r/lowcarb! We are dedicated to supporting each other on our journeys to better health and wellness through the pow97K40+9%3564%95%64%Yes
Show all 72 subreddits
Diet and nutrition subreddits, continued
#SubredditMembersPosts / monthMember growth, 12 moMedian author ageWomenPosts with a replyNew-account posts removedLinks
31r/carnivore↗Welcome to r/carnivore. This community is different than typical diet communities, it's not a grab bag of hacks for undereating It's all about restoring health and that means the first order of bus96K31+5%3231%–Min. age/karmaNo
32r/ShittyRestrictionFood↗Restrictive eating can be rough, but at least it forces the ingenuity out of us. This sub is for laughing/commiserating about the experience of eating things that're low calorie, and uhhhhh... "creati87K426+29%2484%83%29%Yes
33r/ScientificNutrition↗Welcome to r/ScientificNutrition! This subreddit has been created to serve as a neutral ground for exchanging and discussing scientific evidence relating to human nutrition. Importantly, this sub is76K156+29%3333%76%37%Yes
34r/WholeFoodsPlantBased↗A community for those following a whole foods plant based diet. This includes vegetables, fruits, beans, whole grains, nuts/seeds. It excludes meat, dairy, eggs, and fish. It also avoids added salt67K45+28%3566%44%87%Yes
35r/LowcarbRecipes↗Craving flavor on keto? 🥓➡️🥑 Join our Keto & Low-Carb community — cooking made simple, tasty, and sustainable. We call it a “diet,” but really it’s a tasty WOE (way of eating) for life. ▫️ Keto livin67K64–4149%61%–Yes
36r/Juicing↗This community consists of folks interested in adding juicing to their lifestyles for general health and/or weight loss via juice fast (also called juice feast). Several established members of this co66K74+19%3352%68%Min. age/karmaYes
37r/MacroFactor↗The home of MacroFactor on Reddit66K384+45%3326%94%76%Yes
38r/dairyfree↗A subreddit for people who don't consume dairy products.63K177+19%3178%84%Min. age/karmaYes
39r/intuitiveeating↗This (unofficial) subreddit is based on the book Intuitive Eating: An Anti-Diet Revolutionary Approach by RDs Elyse Resch and Evelyn Tribole. The framework is meant to help you reclaim your time and h57K84+8%2990%85%90%Yes
40r/StopEatingSeedOils↗A forum dedicated to the science of reducing seed oil consumption that contains omega-6 LINOLEIC acid PUFA. Read the science articles in the Community Links Menu if you're new to the topic. Post blogs56K108+16%3334%74%23%Yes
41r/ultraprocessedfood↗A science based community for people trying to reduce their intake of ultra-processed foods. Share studies, strategies, practical tips, and real-life experiences for reducing UPFs in daily life.51K58–3461%73%–Yes
42r/weightlossdiets↗r/WeightLossDiets is a supportive community dedicated to sharing real, healthy, and sustainable diet strategies for weight loss. Whether you’re looking for science-backed advice, meal plans, or person50K243+8%3063%20%37%Yes
43r/blueprint_↗This community is for those implementing the Blueprint protocol and striving for perfect adherence. Find & share tips and tricks on food prep, systems, discipline.45K75+23%3226%77%59%Yes
44r/soylent↗Resources, links, experiences, and relevant news dealing with engineered staple foods including but not limited to Soylent. All discussion of products, recipes, and research concerning nutritionally c41K37+3%2822%69%–Yes
45r/Huel↗new-account friendlyThis subreddit is dedicated to the discussion of the nutritionally complete food Huel.41K214+12%3127%90%15%Yes
46r/dietetics↗A place for current and future nutrition professionals to discuss all aspects of the profession.40K218+20%2975%77%Min. age/karmaNo
47r/protein_deals↗A place to share and find the best discounts, sales, and offers on protein powders, bars, and supplements. Whether it’s a crazy online flash sale or a hidden in-store bargain, post it here so we can a35K1,143+978%2413%100%Min. age/karmaYes
48r/lactoseintolerant↗A place for Lactose Intolerant redditors to rage about their gas and help each other out with lactose-free recipes and lifestyle changing stuff.34K123+15%2862%73%41%Yes
49r/healthyeating↗For basic questions about healthy eating and casual discussion. Please be kind to the people who are asking questions. Many people have no idea how to reconstruct their diets. No promoting politica34K115+20%2963%43%42%No
50r/AlternateDayFasting↗What is it? Something like 0-25% of caloric requirements on the restriction day, and regular or ad libitum on the feeding day.32K60+16%3266%85%–Yes
51r/Water_Fasting↗new-account friendlyA place for people to talk about water fasting. By water fasting we mean that we abstain from food and drink except for water.31K94+13%2853%74%10%Yes
52r/AnimalBased↗This diet includes meat 🥩 fruit 🍎 dairy 🥛eggs 🍳 organs ❤️ honey 🐝 maple syrup 🍁 and maybe some fermented veg. These are ancestrally appropriate nutrient dense foods that are low in plant defense chem31K54+18%3035%100%–Yes
53r/Dietandhealth↗Diet and health30K40+15%2651%45%Min. age/karmaNo
54r/WaterFasting↗r/WaterFasting exists to support structured, safety-conscious fasting through education, preparation, experience-sharing, and responsible refeeding. This is not a debate forum, trend space, or medical29K94+13%2753%54%67%Yes
55r/Protein↗A place to discuss anything related to protein, protein powders (Whey, Casein, Soy & Pea protein etc), smoothies, protein bars, and more. Feel free to share recommendations, recipes, and questions abo28K353+87%3139%59%21%No
56r/AutoImmuneProtocol↗r/AutoImmuneProtocol (also known as The AIP diet) is a place for people following or wishing to learn about the Auto Immune Protocol diet. AIP is similar to Paleo but removes additional foods that ar27K44+12%3375%69%–Yes
57r/Dryfasting↗new-account friendlyLive off of your fat. Dry fasting is a type of fasting where individuals abstain from both food and water for a certain period. Unlike traditional fasting, dry fasting requires the body to rely on i21K89+15%2941%84%8%Yes
58r/Preworkoutsupplements↗@ REVIEW BROS - YouTube Channel 🎥 (Click See Community Info For DISCOUNT CODES⤵️) DISCOUNT CODES‼️: DARK LABS: RB10 || HUGE SUPPS: RB10 || GORILLA MIND: RB10 || APOLLON NUTRITION: RB15 || GERMAN PHAR20K295+32%2611%75%64%Yes
59r/VitaminD↗Discuss vitamin D deficiency, optimal levels, sunbathing, and supplements. Check out the guide on our wiki.20K246+51%3051%95%Min. age/karmaYes
60r/raypeat↗A place for discussion of Ray Peat's ideas and related health and nutrition topics.17K226+48%2940%91%64%Yes
61r/veganparenting↗As veganism is steadily growing in popularity, more and more people are raising and nourishing their children without unnessecary animal products. Here in the vegan parenting subreddit, we can share a15K30+21%3278%78%–Yes
62r/magnesium↗Over the past few years I've learned (through research and personal experience) the value of magnesium as a nutritional supplement. I'd like to have a place on reddit to discuss it. For industrial u14K88+34%3144%53%–Yes
63r/SaturatedFat↗Explore the idea that modern health issues are caused by an excess of unsaturated body fat, and strategies for improving the body’s saturated fat balance through diet and lifestyle. Wiki: https://www12K48+14%3537%93%–Yes
64r/rawprimal↗new-account friendlyThe Primal Diet by Aajonus Vonderplanitz. The recipe for living disease free with clarity, strength and energy, based on raw meat, raw seafood, raw milk, raw eggs, unheated honey, and juice.11K1,012+278%2323%87%15%Yes
65r/stimjunkiepreworkouts↗new-account friendlyStim Junkie Pre Workouts is a place to discuss strong formulas, share experiences, compare batches, and get real feedback. Anyone can ask questions or contribute. Trusted stores may support code FITFR8K278+357%338%86%13%Yes
66r/RawMeat↗The Natural Human Diet.7.3K35+31%2822%74%Min. age/karmaYes
67r/CoeliacUK↗A group to share advice, experiences and support for Coeliacs in the UK. This group is not associated with the charity, Coeliac UK7.2K93+41%3364%85%–Yes
68r/ghostlifestyle↗GHOST® at its simplest form is the world's first lifestyle sports nutrition brand. the name GHOST® and mantra "be seen" come from that feeling of being behind the scenes and wanting to be heard, wanti5.7K43+42%3027%92%–Yes
69r/Myprotein↗Welcome to the MyProtein sub, please read the rules. No referral codes. Instaban. Common questions: MyProtein still price gouging: ✅ Why is MP so expensive now? Inflation and rising cost of living 3.8K76+28%2818%79%–Yes
70r/DietitianPh↗new-account friendlyCommunity for Filipino Nutritionist Dietitians3.6K94+73%2573%50%9%Yes
71r/PrimalDietTM↗A community dedicated to the wisdom of Aajonus Vonderplanitz (and his diet advice only). Read the intro to my free book before asking questions. The content on this site is for informational purposes3K67+70%2325%74%–Yes
72r/1500isplentyVegan↗031–2983%–––

Looking for a ranking by size and growth? Top diet and nutrition subreddits by tier.

Method

How this list is built

Subreddits are grouped into topics by what their posts are about; this list holds the diet and nutrition group. We include subreddits that are safe for work and had at least 30 new posts in September 2026, about one a day.

Members is Reddit's subscriber count; growth compares it with a year earlier. Posts with a reply is the share of posts that got at least one comment over the last three months. Median author age and women are estimated from what authors say about themselves, and shown only when enough of them did. New-account posts removed is the share of posts from accounts younger than 7 days that were removed; communities at or below 17% are marked new-account friendly. Min. age/karma means the subreddit asks for a minimum account age or karma before you can post.

The list is rebuilt every month from public Reddit posts and comments. Data and CSV are free to reuse under CC BY 4.0 with a link to this page.

FAQ

Diet and nutrition subreddits: common questions

What is the biggest diet and nutrition subreddit?

r/EatCheapAndHealthy, with 11.5M members in September 2026. Next are r/nutrition (5.91M) and r/keto (3.96M).

Which diet and nutrition subreddits are the most active?

By posts in September 2026: r/BulkOrCut (2,451 posts), r/Supplements (1,727 posts) and r/caloriecount (1,562 posts).

Which diet and nutrition subreddits can a new account post in?

r/Volumeeating (12% of new-account posts removed), r/caloriecount (7% of new-account posts removed) and r/carnivorediet (11% of new-account posts removed). They ask for no minimum karma or account age, and most posts from accounts under a week old stay up.

How often is this list updated?

Every month, when we rebuild our subreddit data. This version uses data for September 2026. Member counts come from Reddit; activity, removals and who writes come from public Reddit posts and comments.

Find the subreddits that fit your post

This list is the same for everyone. Find Subs narrows it to communities your account can post in, where your audience writes, and tells you when to post.

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