Wheat grass is approximately 70% chlorophyll, making it one of the best sources of this potent compound in the world. In fact, wheat grass juice is also called "liquid chlorophyll" or "green blood" because of this. Although best-known as the green plant pigment, chlorophyll can also support healthy immune, digestive and adrenal systems.
According to a 2018 study published in the Journal of Food Science, wheat grass powder contains high amounts of antioxidants that can protect your body from free radical damage. Some of the potent antioxidants in wheat grass include phenolic acid, sulfonic acid, alkaloids, triterpenoids, flavonoids, anthraquinol, saponins and vitamins A, C and E. A study published in the journal Phytotherapy Research also reported that wheat grass extract exhibits a higher antioxidant activity than extracts derived from various other plants.
Aside from antioxidants and chlorophyll, wheat grass powder also contains a wide range of nutrients, such as potassium, calcium, iron, folic acid, dietary fiber, protein, phosphorus, zinc, magnesium, selenium, amino acids and B-complex vitamins.