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Milk thistle is available in the United States as a dietary supplement. Human clinical trials have investigated milk thistle in hepatitis or cirrhosis, although small studies have been reported in some cancers. Get detailed information on studies of milk thistle in cancer in this clinician summary.

Lactose intolerance means that you have trouble digesting foods with lactose, the natural sugar found in milk.

In a food allergy, your immune system reacts to a certain food or ingredient as if it were harmful.

Read about symptoms and management of lactose intolerance, a condition in which you have digestive symptoms after you consume foods or drinks that have lactose.

Preventing Chronic Disease (PCD) is a peer-reviewed electronic journal established by the National Center for Chronic Disease Prevention and Health Promotion. PCD provides an open exchange of information and knowledge among researchers, practitioners, policy makers, and others who strive to improve the health of the public through chronic disease prevention.

Dioxins are mainly byproducts of industrial practices. They are produced through a variety of incineration processes, including improper municipal waste incineration and burning of trash, and can be released into the air during natural processes, such as forest fires and volcanoes.