Benefits:
This combination makes your muscles work better.
Food synergy occurs when individual components within foods work together in the body to maximize health and training benefits. The idea is that the total is greater than the sum of its parts.
To get more nutritional bang from your meals pair these foods up!
Certain vegetables like spinach and beets have nitrates that help your muscles work more efficiently during exercise.
The payload of antioxidants in blueberries helps ease muscle oxidative stress and inflammation in response to exercise.  You could load up prior to a workout by mixing up a blueberry-spinach smoothie (recipe attached).