Is oil in the canned tuna to be drained?

It depends on personal preference and the recipe being used. Some people prefer to drain the oil from canned tuna before consuming it or using it in a recipe, while others do not mind the oil and leave it in. Draining the oil can help to reduce the overall fat content of the tuna, but it can also result in a drier texture. If a recipe calls for a specific amount of oil, such as in a tuna salad, then it is important to drain the oil accordingly.