After drinking wheatgrass juice, patients with ulcerative colitis may experience a decrease in symptoms, and those undergoing chemotherapy may have less severe side effects, reports WebMD. People who drink wheatgrass juice benefit from a number of vitamins and minerals. However, high doses of wheatgrass juice may cause uncomfortable or dangerous side effects, and pregnant women, nursing women and children should abstain from drinking it due to the risk of harmful bacteria.
Wheatgrass juice contains vitamins and minerals equivalent to the same amount of fresh vegetables, explains WebMD. Drinking wheatgrass juice supplies vitamins A, B-12 and E. Minerals include iron, magnesium, calcium and selenium. Adherents profess that the key ingredient is chlorophyll, although all green plant foods contribute chlorophyll to the body.
Research does not substantiate claims that wheatgrass juice helps treat cancer, AIDS, fevers, colds or skin conditions, points out WebMD. There is also no evidence that it detoxifies the body or boosts immune systems. Side effects of consuming too much wheatgrass juice may include nausea, headaches, hives and throat swelling. Additionally, because people make the juice raw, bacteria and other organisms may contaminate it. Wheatgrass thrives outdoors or indoors, and some people produce their own leaves for juicing by growing wheatgrass seeds in water.