In the U.S., turmeric is best known as a spice. It's one of the main components of curry powder. In India and other parts of Asia, turmeric is used to treat many health conditions. It is believed to have anti-inflammatory, antioxidant, and perhaps even anticancer properties.
Why do people take turmeric?
Curcumin, a substance in turmeric, may help to reduce inflammation. Several studies suggest that it might ease symptoms of osteoarthritis and rheumatoid arthritis, like pain and inflammation. Other compounds in turmeric might also be medicinal.
In lab tests, curcumin seems to block the growth of certain kinds of tumors. One study showed that turmeric extract containing curcumin could -- in some cases -- stabilize colorectal cancer that wasn't helped by other treatments. But more research is needed.
Other preliminary lab studies suggest that curcumin or turmeric might protect against types of skin diseases, Alzheimer's disease, colitis, stomach ulcers, and high cholesterol. Based on lab studies, turmeric and curcumin might also help treat upset stomach, scabies, diabetes, HIV, uveitis, and viral infections.
But it’s important to keep in mind that most of these studies have been done in the laboratory. Researchers haven’t yet conducted significant studies on the benefits of turmeric and curcumin. So it's too early to say what health benefits turmeric might have.
How much turmeric should you take?
Turmeric is an unproven treatment, though it has years of traditional use and some preliminary convincing research. There is no standard dosage. Ask your health care provider for advice.
Can you get turmeric naturally from foods?
Turmeric, as a spice, is a common ingredient in Indian cooking. The spice (and supplement) comes from the underground stems (rhizomes) of the turmeric plant.