Parts Used & Where Grown
The common oat used in herbal supplements and foods is derived from cultivated sources. For some herbal supplements, the green or rapidly dried aerial parts of the plant are harvested just before reaching full flower. Many herbal texts refer to using the fruits (seeds) or green tops. Although some herb texts discuss oat straw, there is little medicinal action in this part of the plant.
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This supplement has been used in connection with the following health conditions:
Refer to label instructions
Oats are part a group of “nerve tonic” (nervine) herbs used in traditional herbal medicine for people with anxiety, with few reports of toxicity.
Refer to label instructions
Wild oats have been used historically to treat people with eczema.
Traditional Use (May Not Be Supported by Scientific Studies)
In folk medicine, oats are used by herbalists to treat nervous exhaustion, Reference insomnia, and “weakness of the nerves.” A tea made from oats was thought by herbalists to be useful in rheumatic conditions and to treat Reference water retention. A tincture of the green tops of oats was also used to help with withdrawal from tobacco addiction.1 Oats were often used in baths to treat insomnia and Reference anxiety as well as a variety of skin conditions, including Reference burns and Reference eczema.
How It Works
How It Works
The fruits (seeds) contain alkaloids, such as gramine and avenine, and saponins, such as avenacosides A and B.2 The seeds are also rich in Reference iron, Reference manganese, and Reference zinc. The straw is high in silica. Oat alkaloids are believed to account for the relaxing action of oats, but it should be noted this continues to be debated in Europe. The German Commission E does not approve this herb as a sedative.3 However, an alcohol-based tincture of the fresh plant has reportedly shown some promise in countering nicotine withdrawal and helping with smoking cessation.4
How to Use It
A tea can be made from a heaping tablespoonful (approximately 15 grams) of oats brewed with 1 cup (250 ml) of boiling water. After cooling and straining, the tea can be taken several times a day and shortly before going to bed.5 As a tincture, oats are often taken at 1/2–1 teaspoon (3–5 ml) three times per day. Capsules or tablets, 1–4 grams per day, can be taken. A soothing bath to ease irritated skin can be made by running the bath water through a sock containing several tablespoons of oats, then bathing in the water for several minutes.
Interactions with Supplements, Foods, & Other Compounds
Interactions with Medicines
1. Weiss RF. Herbal Medicine. Gothenburg, Sweden: Ab Arcanum, 1988, 287–8.
2. Mills SY. Out of the Earth: The Essential Book of Herbal Medicine. Middlesex, UK: Viking Arcana, 1991, 510–2.
3. Wichtl M. Herbal Drugs and Phytopharmaceuticals. Boca Raton, FL: CRC Press, 1994, 96–8.
4. Anand CL. Effect of Avena sativa on cigarette smoking. Nature 1974;233:496.
5. Wichtl M. Herbal Drugs and Phytopharmaceuticals. Boca Raton, FL: CRC Press, 1994, 96–8.
Last Review: 11-07-2012
Copyright © 2012 Aisle7. All rights reserved. Aisle7.com
The information presented in Aisle7 is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires June 2013.