Forums in the Muscle Gain Niche

1. Professional Muscle - Bodybuilding Forum
Forum has 124,545 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. 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/  

8. Body Building Forum - The Iron Den
The Iron Den bodybuilding forum literally has everything that you need to know if you hope to effectively build muscle.
https://www.theironden.com/forum/  

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
http://www.worldclassbodybuilding.com/forums/  

11. EliteFitness.com Bodybuilding
Bodybuilding, Fitness, and Anabolic Steroids Forums EliteFitness.com
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. saradas.org
Forum Saradas - Index
https://saradas.org/  

17. WannabeBig.com
Here's an updated list of the top bodybuilding forums so that you do not miss out on any of interesting updates related to fitness and bodybuilding.
http://www.wannabebig.com/forums/  

18. 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/  

19. www.myfit.ca
category. These fitness forums will help you reach your exercise and workout goals by being able to ask questions to personal trainers and other members.
https://www.myfit.ca/forums.asp  

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. 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/  

22. Thinner Times® Forum
Thinner Times® Forum is a weight loss surgery forum gastric bypass, Lap Band, and vertical sleeve gastrectomy.
https://www.thinnertimesforum.com/  

23. www.indiaparenting.com
This is a discussion forum.
https://www.indiaparenting.com/forums/forum.php  

24. 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/  

25. HTGuide
Forum has 478,474 posts.
http://www.htguide.com/forum/forum.php  

26. LS1.com | GM LSx Performance Forum
Forum has 2,762,312 posts.
https://www.ls1.com/forums/forum.php  

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

28. Elite Trader
Elite Trader is the #1 site for traders of stocks, options, currencies, index futures, and cryptocurrencies.
http://elitetrader.com/vb/  

29. 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/  

30. 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  

31. Home Dialysis Central
Home Dialysis Central is a one-stop resource for patients and professionals who want to learn more about home dialysis options.
http://forums.homedialysis.org/