I wish I had a dollar for every time I saw someone suggest using your essential oils in a glass of water. I would be a millionaire many times over! Not only is this practice very unsafe, it is wasting a precious resource mother nature is giving us. What people do not realize is those who are suggesting this unsafe practice are making money off of you. The more oils you use, the more you buy. Period. These same people also suggest using oils undiluted on the skin, again, another practice that is highly unsafe. Unfortunately money is a big factor for many people, they are more worried about making money than educating you on safe usage.
As an educated professional, here is my list of reasons why you shouldn't drink your oils.