8. Avocado
Avocados owe their creamy texture to the presence of lots of healthy unsaturated fat. Most of it is in the form of oleic acid, which studies show can lower particular biomarkers of inflammation. Whatever the cause of your knee pain, your pain will decrease as inflammation abates. Avocado is one of the only foods that can also minimize the ability of other foods to generate inflammation, which makes it very helpful to add to almost any meal.