Subreddits similar to r/crossfit

75k subs

/r/weightlifting is where we discuss the competitive sport of Weightlifting; contesting the Snatch and Clean and Jerk. We welcome discussions regarding elite athletes, competition and training tactics, theories, technique, and programming. We do not welcome off-topic posts, blog spam, or other low-effort, low-value posts. We will not tolerate commentary on the attractiveness or lack thereof of any lifter. We are not your doctor, do not post seeking medical advice. All weights are in kilos.
https://reddit.com/r/weightlifting/

r/Fitness

7m subs

Discussion of physical fitness/exercise goals and how they can be achieved
https://reddit.com/r/Fitness/

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/

r/homegym

104k subs

A subreddit devoted to working out at home.
https://reddit.com/r/homegym/

r/weightroom

200k subs

A subreddit for general weight training discussion, focused on intermediate level and above in experience and strength, for those ranging from strength sport competitors, sports that benefit from weight training, or weight training enthusiasts. Or for people to tell /u/WeaponizedSleep to eat more.
https://reddit.com/r/weightroom/

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/running

712k subs

All runners welcome.
https://reddit.com/r/running/

r/bodybuilding

720k subs

News, articles, personal pictures, videos & advice on everything related to bodybuilding - nutrition, supplementation, training, contest preparation, and more.
https://reddit.com/r/bodybuilding/

r/bodyweightfitness

1m subs

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/powerlifting

120k subs

A subreddit for the sport of powerlifting
https://reddit.com/r/powerlifting/

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/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/malefashionadvice

2m subs

Making clothing less intimidating and helping you develop your own style. We welcome those who want to learn and those who want to contribute.
https://reddit.com/r/malefashionadvice/

r/fffffffuuuuuuuuuuuu

857k subs

it's still alive! kinda...
https://reddit.com/r/fffffffuuuuuuuuuuuu/

r/progresspics

833k subs

post those awesome before/after pictures of yours!
https://reddit.com/r/progresspics/

r/leangains

160k subs

https://reddit.com/r/leangains/

r/ketogains

188k subs

Ketogains is “a practical and evidence-based protocol with the goal of achieving optimal body composition and health.” - Ketogains.com
https://reddit.com/r/ketogains/

r/AdviceAnimals

8m subs

Reddit's Gold Mine
https://reddit.com/r/AdviceAnimals/

r/gainit

266k subs

Fitness subreddit for information and discussion for people looking to put on weight, muscle, and strength.
https://reddit.com/r/gainit/

r/nutrition

534k subs

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.
https://reddit.com/r/nutrition/

r/reddit.com

818k subs

The original subreddit, now archived.
https://reddit.com/r/reddit.com/

r/bjj

143k subs

https://reddit.com/r/bjj/

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/

r/kettlebell

50k subs

Forum for kettlebell enthusiasts.
https://reddit.com/r/kettlebell/

r/IAmA

19m subs

https://reddit.com/r/IAmA/

r/fitmeals

209k subs

https://reddit.com/r/fitmeals/

r/Entrepreneur

595k subs

A community of individuals who seek to solve problems, network professionally, collaborate on projects and make the world a better place. Be professional, humble, and open to new ideas.
https://reddit.com/r/Entrepreneur/

r/CrossfitGirls

29k subs

*
https://reddit.com/r/CrossfitGirls/

r/promos

12k subs

https://reddit.com/r/promos/

r/MMA

842k subs

A subreddit for all things Mixed Martial Arts.
https://reddit.com/r/MMA/