3. Apple cider vinegar
Apple cider vinegar is another natural remedy that people use for everything, and studies are backing up the claims. When it comes to knee pain, the alkalizing effect of ACV can dissolve toxins within the knee that may be sparking inflammation. You can benefit from apple cider vinegar by both drinking it and applying it topically.
If you drink it, the optimal amount is 2 tablespoons per day. Some people take it straight, some mix it with water, and some sweeten it with honey. If you would like to use it topically, mix your ACV with olive oil and massage into painful knees once per day for at least a week to see results.