You can't talk about fitness without discussing joint discomfort. It plagues so many people, including me. The factor that effects your joints the most is being overweight. When I snow-skied a lot, I took glucosamine chondroiton with great results, but it doesn't work for everyone. I have since stopped taking the supplements and am thinking about going back. Joints need regular maintenance. My granma has had two knee replacements, my mom two hips...my outlook isn't so good without maintenance. I'm also taking off the extra pounds that can cause a lot of discomfort. I sprained a knee in college and it still aches and probably always will.
GNC offers the fairly new InstaFlex Joint Support supplement I'm going to try. I'll keep this post updated on how this stuff is in my opinion.