Yes, truffle oil is generally safe to eat. It's made from a combination of truffles and vegetable or olive oils. The smell and taste of the oil depend on how it was processed. Truffle oil can be used to add flavor and aroma to dishes like risotto, pasta, salads, pizzas, potatoes and more. However, some people are sensitive to the strong flavor of the oil so they should use it sparingly or avoid it altogether if they experience any adverse reactions after eating it. Additionally, most truffle oils contain added preservatives that may not be suitable for everyone so always read labels carefully before consuming any product containing this ingredient.