It is not safe to ingest essential oils, either straight into the mouth, diluting in water or other liquids and using in any food or beverages. I do not encourage or prescribe this in my practice in any form. The use of inhalation & applying topically is effective and safe (and follows the best practice methods and codes of ethics of the qualified community worldwide) when used as directed. NEVER use neat (undiluted), especially on babies, toddlers & children.