Stress can also deplete your levels of vitamin C, especially when you consider that your adrenal glands need vitamin C to produce stress hormones in the first place.

Blueberries are a superfood that can help relieve anxiety due to their high levels of vitamin C and antioxidants, like flavonoids, which help delay and prevent cell damage.

Wild blueberries even have twice the antioxidant power of regular blueberries!