PURPOSE: To produce a tofu (soybean curd) containing docosahexaenoic acid(DHA) capable of readily ingesting the DHA from the tofu which is a protein source of good quality daily used for foods.

CONSTITUTION: This tofu contains DHA in an amount of 10mg to 1g based on one block. Furthermore, the tofu containing the DHA is obtained by adding and mixing a suspension comprising a fish oil consisting essentially of the DHA and a citrus juice or a vinegar with, e.g. a soybean milk in a process for producing the tofu. The resultant tofu is good in taste, aroma and palatability without emitting a fishy smell derived from the fish oil, consisting essentially of the DHA and used as a raw material.