Oat straw contains protein (avenins), saponins, flavonoids, alkaloids, steroidal compounds, vitamins B1, B2, D, E, carotene, starch, and fat.
It also contains minerals such as calcium, magnesium and iron and trace elements like silicon and potassium. The entire plant is nutrient rich and is commonly taken as a tea.
In addition to its recognition and value as a stable food crop, however, oat straw is also used in the treatment of a number of human maladies, ailments or discomforts. It can help to combat problems such as abesity, varicous veins, irritations related to the digestive tract and as an herbal treatment for hemorrhoids, however it has been found that it should not be used in dyspepsia when accompanied by acidity of the stomach.
Oatstraw is a diuretic and is used to treat obesity, lymphatic swelling, retention, nerve inflammation, urinary tract infections, kidney stones and skin eruptions. MayoClinic.Com says diuretics work by forcing your kidneys to put more sodium into your urine, which will take more water along with it. Oat straw is commonly used in traditional and herbal medicine to nourish and strengthen the central nervous system. It is also considered a stimulant that homeopaths will use to help treat liver infections and arthritis.
Cooled, prepared oat straw tea can be placed directly on your skin or added to a bath that can help nourish dry skin as well as treat mild eczema. Oat straw is also used as a folk remedy to treat warts. Because oat straw contains high amounts of silica, which is the main ingredient in our nails, it can help keep your toenails and fingernails strong and free from splitting. Oat straw has emollient qualities that can benefit your hair. Use the tea as a hair rinse to add body and shine.