Peppermint oil is used by some as a flavoring agent. Many people don’t mind the taste of it, and further more the oil contains a number of minerals and nutrients. Some of these minerals and nutrients include calcium, manganese, folate, copper and potassium, but it also contains vitamin A and C, as well as omega-3 fatty acids. Peppermint oil is good for digestion, and some people add a few drops of the oil to their water or drink after their meal. It can actually help remove access gas, and those who have a low appetite may find it beneficial, as it is a good tonic for people with a low appetite. Not only that, but peppermint oil can treat a number of things such as upset stomachs, motion sickness and nausea, and it can be used for treating heartburn, when it is combined with caraway oil.