r/intermittentfasting

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About r/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. This is a place to share success, support each other, ask questions, and learn. IF is an 18+ community because the practice is not medically recommended to/for children.

The community at a glance

r/intermittentfasting is a Subreddit for Fitness Enthusiasts and Longevity Enthusiasts with roughly 1.0M members. It uses a forum format for communication. It is the 1st largest community in the Longevity topic page and the 9th largest community in the Fitness topic page.

Roughly 42K members have joined in the past year. Popular discussion topics include Fasting, Weightloss, and Weight Loss. Common discussion themes are Advice Requests and Pain & Anger. Product recommendations often mention fasting app, if schedule, and scale.

On Reddit
1.0M Members

Community Topics

Community Features

Forum

This community has a forum

Subreddit Analysis

via GummySearch
Yearly: +42K members
Growth: +4.4% / year

Member growth over time

All time (yearly)

  • 2013: 84 members
  • 2014: 477 members
  • 2015: 2K members
  • 2016: 7K members
  • 2017: 38K members
  • 2018: 149K members
  • 2019: 345K members
  • 2020: 177K members
  • 2021: 87K members
  • 2023: 96K members
  • 2024: 42K members
  • 2025: 30K members
  • 2026: 27K members

Past year (monthly)

  • Jul: 2K members
  • Aug: 2K members
  • Sep: 1K members
  • Oct: 1K members
  • Nov: 4K members
  • Dec: 4K members
  • Jan: 5K members
  • Feb: 4K members
  • Mar: 5K members
  • Apr: 5K members
  • May: 4K members
  • Jun: 4K members

Themes

  • Advice Requests
    4 posts in the past month
    1. Anyone else get WAY hungrier after certain “healthy” foods?
    2. First fast in a long time. Started feeling nauseous so I broke my fast this morning. Tips appreciated.
    3. I build a IF/ calorie deficit weight loss calculator - Give me your feedback
    #1
    Advice Requests
    Anyone else get WAY hungrier after certain “healthy” foods? · First fast in a long time. Started feeling nauseous so I broke my fast this morning. Tips appreciated. · I build a IF/ calorie deficit weight loss calculator - Give me your feedback
    4
  • Pain & Anger
    3 posts in the past month
    1. Can I ever get back to this body? (21 now i was 13 in the other pic, used to be skinny/slim as a kid)
    2. From being depressed and being over 100 kilos and too damn scared to check my weight to 95 kilos it's been a good few months maybe someday I'll even post my body here.
    3. Had a shit day. I’ve lost 7 pounds in 4 days (tho it’s my first IF) and I wanna break it early to eat and feel better:/ tell me not to😭
    #2
    Pain & Anger
    Can I ever get back to this body? (21 now i was 13 in the other pic, used to be skinny/slim as a kid) · From being depressed and being over 100 kilos and too damn scared to check my weight to 95 kilos it's been a good few months maybe someday I'll even post my body here. · Had a shit day. I’ve lost 7 pounds in 4 days (tho it’s my first IF) and I wanna break it early to eat and feel better:/ tell me not to😭
    3

Topics

  • Fasting
    323 posts in the past month
    1. Intermittent fasting & a calorie deficit works everytime. 250+ lbs to 161 lbs
    2. 5 foot 7 (237lbs ➡️ 165lbs) I’m on day 115 started fasting 19 hours eating period was 12-5pm feeling amazing! Goal is to maintain and progressive overload while keeping protein high
    3. How I lost 171 pounds fasting and keto and my update.
    #1
    Fasting
    Intermittent fasting & a calorie deficit works everytime. 250+ lbs to 161 lbs · 5 foot 7 (237lbs ➡️ 165lbs) I’m on day 115 started fasting 19 hours eating period was 12-5pm feeling amazing! Goal is to maintain and progressive overload while keeping protein high · How I lost 171 pounds fasting and keto and my update.
    323
  • Weightloss
    50 posts in the past month
    1. 5 foot 7 (237lbs ➡️ 165lbs) I’m on day 115 started fasting 19 hours eating period was 12-5pm feeling amazing! Goal is to maintain and progressive overload while keeping protein high
    2. Omad journey(repost)
    3. (48) 220lbs down to 195lbs(current) Before and after 1 year IF dieting and 3 months gym. Will post update(s) soon.
    #2
    Weightloss
    5 foot 7 (237lbs ➡️ 165lbs) I’m on day 115 started fasting 19 hours eating period was 12-5pm feeling amazing! Goal is to maintain and progressive overload while keeping protein high · Omad journey(repost) · (48) 220lbs down to 195lbs(current) Before and after 1 year IF dieting and 3 months gym. Will post update(s) soon.
    50
  • Weight Loss
    47 posts in the past month
    1. I build a IF/ calorie deficit weight loss calculator - Give me your feedback
    #3
    Weight Loss
    I build a IF/ calorie deficit weight loss calculator - Give me your feedback
    47
  • Struggling
    44 posts in the past month
    #4
    Struggling
    44
  • Progress
    40 posts in the past month
    1. 1 year IF Progress.
    2. Eight month progress
    3. Weekly progress post…week 47 completed at 115.1 lbs down
    #5
    Progress
    1 year IF Progress. · Eight month progress · Weekly progress post…week 47 completed at 115.1 lbs down
    40

Flair

  • Progress Pic
    92 posts in the past month
    1. 1 year update
    2. After 9 months I'm finally starting to see the person hiding underneath.
    3. Eating one Meal a day walking 5 miles and Keto 171 pounds lost in 8 months!
    #1
    Progress Pic
    1 year update · After 9 months I'm finally starting to see the person hiding underneath. · Eating one Meal a day walking 5 miles and Keto 171 pounds lost in 8 months!
    92
  • Discussion
    37 posts in the past month
    1. Just waiting for the paper towel effect to kick in
    2. Keto and OMAD 177 ibs down eating like this!
    3. Revisiting this fasting benefits view 9 months later - No major changes 😊
    #2
    Discussion
    Just waiting for the paper towel effect to kick in · Keto and OMAD 177 ibs down eating like this! · Revisiting this fasting benefits view 9 months later - No major changes 😊
    37
  • Tips, Tricks, Advice
    23 posts in the past month
    1. Tip for people who don’t like black coffee
    2. Humble pro-tip: dilute snacks
    3. Down 8 kgs in 1 month - what actually worked
    #3
    Tips, Tricks, Advice
    Tip for people who don’t like black coffee · Humble pro-tip: dilute snacks · Down 8 kgs in 1 month - what actually worked
    23
  • Seeking Advice
    13 posts in the past month
    1. Can I ever get back to this body? (21 now i was 13 in the other pic, used to be skinny/slim as a kid)
    2. Finally found an app that doesnt demand payment for simple fast tracking
    3. so just got out of the dietician's office...
    #4
    Seeking Advice
    Can I ever get back to this body? (21 now i was 13 in the other pic, used to be skinny/slim as a kid) · Finally found an app that doesnt demand payment for simple fast tracking · so just got out of the dietician's office...
    13
  • Newbie Question
    12 posts in the past month
    1. Why Does Society Treat Skipping a Meal Like A Medical Emergency?
    2. First timer here
    3. How much is too much electrolytes?
    #5
    Newbie Question
    Why Does Society Treat Skipping a Meal Like A Medical Emergency? · First timer here · How much is too much electrolytes?
    12

Product recommendations

  • fasting app
    11 posts in the past month
    1. What’s the best app to use for tracking?
    2. Best fasting app??
    3. Best Tracking App
    #1
    fasting app
    What’s the best app to use for tracking? · Best fasting app?? · Best Tracking App
    11
  • if schedule
    2 posts in the past month
    1. Best IF Schedule?
    2. Wanting opinions on the best IF schedule, tips, and success stories
    #2
    if schedule
    Best IF Schedule? · Wanting opinions on the best IF schedule, tips, and success stories
    2
  • scale
    2 posts in the past month
    1. Best Scale
    2. Scale recs?
    #3
    scale
    Best Scale · Scale recs?
    2
  • fasting method
    1 post in the past month
    1. best fasting method?
    #4
    fasting method
    best fasting method?
    1
  • protein powder
    1 post in the past month
    1. best protein powder for weight loss
    #5
    protein powder
    best protein powder for weight loss
    1
View full analysis on GummySearchSynced 6/19/2026

Frequently asked questions

Who is r/intermittentfasting for?
Best for Fitness Enthusiasts and Longevity Enthusiasts enthusiasts looking for a Reddit-based community with forum discussion.
Is r/intermittentfasting free to join?
This listing is not marked as paid-only. Access rules and any fees are decided by the community.
How many members does r/intermittentfasting have?
Roughly 1.0M members, based on figures reported by the community or its host. Member counts are approximate and change over time.
What platform is r/intermittentfasting on?
r/intermittentfasting runs on Reddit. Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members. From investing Reddit communities, to professional ones, to ones just for laughs, you're likely to find a community for you on Reddit.
What topics does r/intermittentfasting cover?
On the Hive Index, r/intermittentfasting is organized under Fitness Enthusiasts, Longevity Enthusiasts.
How do I join r/intermittentfasting?
You can join r/intermittentfasting by clicking this link, or pressing the "Go to community" button above.
What are the Fitness communities like?
One of the larger topic areas on the site, covering lifting, running, yoga, calisthenics, and pretty much every other form of exercise. Reddit has massive communities for general fitness and specific disciplines, with Discord servers for accountability and program sharing. Good for program recommendations, form checks, and finding training partners.
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Added 4/26/2026

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