- Modern studies tend to confirm traditional claims that caraway oil, especially when it is combined with peppermint oil, can support stomach upset. Other claims remain unsubstantiated, but given the extremely low toxicity of caraway oil, there is no reason not to try it. Even if taking caraway does provide support for stomach upset, persistent symptoms require scientific evaluation. - Often called by its German name, kmmel or kuemmel, this plant's crescent-shaped seeds are reputed to streng