There are many fitness products that people are interested in buying, and there are affiliate programs for many of them, including: Home exercise equipmentBrands like Horizon Fitness and ProForm offer affiliate programs for their treadmills, ellipticals, and other fitness equipment. ApparelBrands like Puma, Adidas, and Reebok offer affiliate programs for their fitness apparel. Fitness educationBrands like ACE Fitness, National Academy of Sports Medicine, and ASFA offer affiliate programs for fitness certification and education. Essential oils and aromatherapyPlant Therapy offers an affiliate program for their essential oils and aromatherapy products. Other fitness affiliate programs include:Bodybuilding.com, MyProtein, Fitbit, Under Armour, TRX Training, Tough Mudder, Titan Fitness, IdealFit, Onnit, and iHerb.