The fruits (seeds) contain alkaloids, such as gramine and avenine, and saponins, such as avenacosides A and B.* The seeds are also rich in iron, manganese, and zinc.* 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. However, an alcohol-based tincture of the fresh plant has reportedly shown some promise in countering nicotine withdrawal and helping with smoking cessation.^*