Fish oil is often recommended for people with joint pain because it contains a lot of omega-3 fatty acids. Not only can omega-3s reduce inflammation, but they also increase blood flow in the body while you are active. That has a further beneficial effect on the reduction of joint pain and swelling. Finally, the EPA and DHA in fish oil are known to limit the production of certain negative proteins associated with some types of arthritis.
Get your fish oil by eating sustainably harvested fish or choosing a supplement. Whole fish additionally contains vitamin D and calcium, which work together to strengthen bones. Because bones play a huge role in the makeup of your joints, it makes sense that supporting them can improve the quality of your joint health overall.