Does fish oil reduce inflammation?

Yes: The omega-3 fatty acids in fish oil have anti-inflammatory effects. Aside from fish oil which provides dha and epa, other good sources of the omega-3 ala are the algae that the fish eat, vegetable oils, such as soybean, rapeseed (canola), and flaxseed, walnuts, and some green vegetables, such as brussels sprouts, kale, spinach, and salad greens. The converts small amounts of ala to epa and dha.

Temporary effect: Krill oil and fish oil are the new snake oil, both are high in omega 3 fatty acids which are extremely fragile. Omega 3 fish oils reduce triglycerides by impairing the liver's ablility to make them. However the oxidative stress caused by fish oil actually raises LDL cholesterol. Some day we may use the phrase "this is just more fish /krill oil" or "here comes the fish/krill oil salesman".