Cheonggukjang (청국장) is a fermented soybean paste used in Korean cuisine. It contains whole as well as ground soybeans. Cheonggukjang is generally considered to be a healthy food (particularly in the winter), as it is rich in vitamins and other nutrients, though its very strong odor is not universally enjoyed. Doenjang may be used to replace it by people who dislike the smell. Cheonggukjang is also believed to aid in digestion. For this purpose, cheonggukjang pills are produced in South Korea.