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r/C25K
94k  subs
Anything related to the [Couch to 5k](http://www.coolrunning.com/engine/2/2_3/181.shtml) running programs or the like; open to all, noobie to pro.
https://reddit.com/r/C25K/
r/running
712k  subs
r/loseit
2m  subs
A place for people of all sizes to discuss healthy and sustainable methods of weight loss. Whether you need to lose 2 lbs or 400 lbs, you are welcome here!
https://reddit.com/r/loseit/
r/90daysgoal
31k  subs
We are changing our lives 90 days at a time!
https://reddit.com/r/90daysgoal/
r/xxfitness
358k  subs
For women and gender non-binary redditors who are fit, want to be fit, like reading about fitness to put off getting fit. Feel free to discuss your own personal experience related to fitness, exercise, dieting, gaining weight, body image, and health.
https://reddit.com/r/xxfitness/
r/trailrunning
40k  subs
The fun begins where the road ends.
https://reddit.com/r/trailrunning/
r/Fitness
7m  subs
Discussion of physical fitness/exercise goals and how they can be achieved
https://reddit.com/r/Fitness/
r/bicycling
507k  subs
Two wheels, powered by a person. Interested in riding a bicycle? We welcome bicyclists of all skill levels including those who don't yet own a bike. Ask us your questions or meetup with other redditors in your area for local rides. Happy cycling!
https://reddit.com/r/bicycling/
Bodyweightfitness is for redditors who like to use their own body to train, from the simple pullups, pushups, and squats to the advanced bodyweight movements like the planche, one arm chin-ups, or single leg squats. Start your fitness journey with our Recommended Routine and wiki.
https://reddit.com/r/bodyweightfitness/
r/progresspics
833k  subs
post those awesome before/after pictures of yours!
https://reddit.com/r/progresspics/
r/fitbit
47k  subs
A forum for discussion of all Fitbit-related products. Come ask questions, encourage/challenge others, and join a community making steps towards their goals.
https://reddit.com/r/fitbit/
r/Paleo
145k  subs
This subreddit is for anyone following or interested in learning more about an ancestral-style diet, such as paleo, primal, or whatever other names they're falling under these days. Other topics of interest are health, fitness and lifestyle issues as seen from an evolutionary perspective.
https://reddit.com/r/Paleo/
An "anything goes" place to help each other, learn, freak out, laugh, and make our first journey to the full marathon a little less scary/hard.
https://reddit.com/r/firstmarathon/
r/xxketo
96k  subs
/r/xxketo is a subreddit dedicated to discussing a ketogenic diet from a female-identifying perspective
https://reddit.com/r/xxketo/
r/Swimming
60k  subs
Swimming, from beginners to recreational to competitive swimming. Pool and open water.
https://reddit.com/r/Swimming/
r/keto
2m  subs
The Ketogenic Diet is a low carb, high fat method of eating. And /r/keto is place to share thoughts, ideas, benefits, and experiences around eating within a Ketogenic Diet. Helping people with diabetes, epilepsy, autoimmune disorders, acid reflux, inflammation, hormonal imbalances, and a number of other issues, every day.
https://reddit.com/r/keto/
r/1200isplenty
312k  subs
Whether you want to lose weight through calorie counting, or you're a smaller person who doesn't need more than 1200 calories a day, this is the place for you. Tips, recipes and support for people interested in low-calorie meals.
https://reddit.com/r/1200isplenty/
r/triathlon
38k  subs
A subreddit dedicated to the sport of triathlon, and all of its constituent components, quirks, and joys.
https://reddit.com/r/triathlon/
First World Problems. If it's a problem you can only have if you have money we'll feel bad for you. Then we'll feel guilty for having enough money to have the same problem.
https://reddit.com/r/firstworldproblems/
r/reddit.com
818k  subs
The original subreddit, now archived.
https://reddit.com/r/reddit.com/
A community of barefoot and minimalist runners.
https://reddit.com/r/BarefootRunning/
A helpful place for anyone getting married! Get ideas on etiquette, invitations, themes, styles, or anything wedding-related. We welcome posts that are directly related to your wedding planning.
https://reddit.com/r/weddingplanning/
Two feet, four paws! A community for people who combine the two greatest things in all the world - running and dogs!
https://reddit.com/r/RunningWithDogs/