Oil oxidation

Even the healthiest of cooking oils can inflame our bodies after they have been oxidized by air and light. Keep cooking oil bottles closed when not in use, buy in small quantities (even if that means you pay a bit more for each ounce), store oil away from light, buy delicate oils (like olive and flax) sold in dark containers, and choose omega-3 supplements from reputable suppliers (if they taste or smell “fishy” they are oxidized).