Most foods fall to either the acidic or the alkaline side of the pH scale, and some people believe that maintaining the right pH balance in your body is essential for optimal health.
So what about blueberries? Are blueberries acidic or alkaline?
Blueberries are mildly acidifying . The pH of blueberries is around 3, which means they are acidic by itself, and once they get metabolized in the body, they keep that acidic effect.
So in opposition to Lemons for example (which are acidic but have an alkalining effect once digested), blueberries are still towards the acidic side of the scale after you eat them and you should take this into account when planning your meals if they will include blueberries.