Knee pain sucks. Forget squatting, just getting out of the car can be an ordeal. Unfortunately, knee pain can be an occupational hazard for dedicated gym rats. A very recent study published in Nutrition Journal shows that a small amount of supplemental type II collagen (a very inexpensive supplement that is easy to find) can provide a ton of relief for painful knees and other joints. In the experiment, a group of subjects who took 40 milligrams of type II collagen experienced less pain than those who took a combination of glucosamine and chondroitin or those who took a placebo. (All subjects had existing osteoarthritis in their knees.) While this study examined the effects of type II collagen on knees, it can hypothetically benefit any painful joint.