It is very rich in protein. It contains 15 grams of protein per 100 grams of tofu, of high biological value. It is a good source of copper, rich in selenium, zinc, and isoflavones. It is low in fat and poor in cholesterol, while the fats it contains are good quality omega-3 fatty acids. It is a good source of calcium, as 100 grams of tofu provide more than 50% of the recommended daily amount of calcium. It includes B complex vitamins and manganese.