Forums in the Muscle Gain Niche

1. Professional Muscle - Bodybuilding Forum
Forum has 141,374 topics.
https://www.professionalmuscle.com/forums/  

2. forum.muscleandstrength.com
Muscle & Strength Forum: Learn how to build muscle and lose fat!
https://forum.muscleandstrength.com/  

3. Real Muscle Forums - Body Building and fitness Forums
Real Muscle forum is a fitness and bodybuilding forum purely for the discussion of keeping fit and improving your body.
https://www.realmuscleforum.com/  

4. MuscleTalk
Welcome to MuscleTalk - UK Bodybuilding, Strength, Fitness and Supplements information since November 2000
https://www.muscletalk.co.uk/  

5. UK-Muscle.co.uk Forum
A forum community dedicated to bodybuilding in the UK. Come join the discussion about personal care, health, lifestyles, spirituality, supplementation, shows, diets, medication, research, training,...
https://www.uk-muscle.co.uk/  

6. Runners Forum
A forum community dedicated to all things Running! Come take a lap and talk training, marathons, proper self care, and more!
http://www.runnersforum.co.uk/  

7. Body Building Forum - The Iron Den
Forum has 27,700 members.
https://www.theironden.com/forum/  

8. Bodybuilding, Muscle, Fitness and Health Forum - TMuscle
TMuscle - Read and discuss bodybuilding, muscle, strength, fat loss, supplements, health, fitness, steroids, powerlifting, strongman and much more.
https://www.tmuscle.co.uk/  

9. Contractor
ContractorForum.co.uk is a free building forum for Professional Contractors and Builders alike. Gain free advice on Building and Contracting from fellow Professional Contractors.
https://www.contractorforum.co.uk/  

10. World Class Bodybuilding
Bodybuilding fitness forum dicussing bodybuilding, supplements, anabolic steroids, muscle building, nutrition, bodybuilding training, workouts, fat loss, and training fitness
https://www.worldclassbodybuilding.com/forums/  

11. EliteFitness.com Bodybuilding
Forum has 389,922 members.
https://www.elitefitness.com/forum/  

12. www.ironmagazineforums.com
Bodybuilding and Anabolic Steroid Discussion Forums.
https://www.ironmagazineforums.com/  

13. www.skimble.com
Skimble forums.
https://www.skimble.com/workout-trainer/forums/  

14. Rolex Forums
Rolex forum - Rolex discussion forum, Rolex news, Rolex features, Rolex gallery, Rolex resources, Rolex reviews, Rolex watches,Rolex sales,Tudor,Panerai,Omega
http://www.rolexforums.com/  

15. Electricians Forums | Electrical Safety Advice | Talk Electrician Forum
Electrical Advice for Free
https://www.electriciansforums.net/  

16. My Local Services
Welcome to our 100% free and friendly Small Business Forum. Gain advice, help and join in the business discussion and banter.
https://www.mylocalservices.co.uk/forum/  

17. WannabeBig.com
Forum has 123,580 topics.
http://www.wannabebig.com/forums/  

18. FerrariChat - The world's largest Ferrari community
With 1500+ new forum posts daily and 200K registered users, our community covers all things Ferrari - new models, classics, racing, tech, auctions, and more.
http://www.ferrarichat.com/forum/  

19. Forum Saradas
Forum Saradas - Index
https://saradas.org/  

20. Bodybuilding Forums Musclemecca
musclemecca bodybuilding forums is where bodybuilders discuss and find news on weight training, muscle building, anabolic steroids, nutrition and professional events like Mr. Olympia and Arnold...
https://musclemecca.com/  

21. Aussie Stock Forums
ASX discussion forum for Australian stock market investors and traders
https://www.aussiestockforums.com/forums/  

22. AnabolicMinds.com
Bodybuilding and supplement forum including a community of over 300,000 fitness enthusiasts from around the world.
http://anabolicminds.com/forum/  

23. Cathe Friedrich Fitness Forums
Cathe Friedrich forums about fitness, health, nutrition and workouts.
https://cathe.com/forum/  

24. www.lucasforums.com
Explore PokerVerse Collective, a shared poker ecosystem combining strategy models, real-hand insights, bonus evaluation, and player-focused analytical tools.
http://lucasforums.com/  

25. The Depression Forums
Depression Forums is the Internets biggest peer to peer depression support forum. Here you can find information on depression related medications and general depression related discussion from...
http://www.depressionforums.org/forums/  

26. Real Health
Real Health serves up honest, cutting-edge information for African-Americans on fitness, diet/nutrition, hair health, skin health, sexual health, relationships and family.
https://forums.realhealthmag.com/  

27. HTGuide
We are HTGuide.com, your home theater forum and audio video community. We are a large audio video discussion forum with over 19,000 members. Established in August, 2000 We also feature specialty...
https://www.htguide.com/forum/forum.php  

28. LS1.com | GM LSx Performance Forum
LSx, LS1, LS2 LS7 GM Performance & Technical Information
https://www.ls1.com/forums/forum.php  

29. www.elitetrader.com
Elite Trader is the #1 site for traders of stocks, options, currencies, index futures, and cryptocurrencies.
https://www.elitetrader.com/et/  

30. HealthBoards
Health related message boards offering discussions of numerous health topics including allergies, cancer, diabetes, heart disease, exercise, attention deficit disorder, diet, and nutrition.
https://www.healthboards.com/boards/  

31. MONTREALRACING
This is an automotive discussion forum for the city of Montreal powered by vBulletin. To find out about vBulletin, go to http://www.vbulletin.com/ .
https://montrealracing.com/forums/forum.php  

32. Home Dialysis Central
Forum has 21,951 posts.
http://forums.homedialysis.org/