Turmeric is an ancient spice, a native of South East Asia, used from antiquity as dye and a condiment. It is cultivated primarily in Bengal, China, Taiwan, Sri Lanka, Java. Peru. Australia and the West Indies. It is still used in rituals of the Hindu religion, and as a dye for holy robes, being natural, unsynthesized and cheap. Turmeric is in fact one of the cheapest spices. Although as a dye it is used similarly to saffron, the culinary uses of the two spices should not be confused and should never replace saffron in food dishes. Its use dates back nearly 4000 years, to the Vedic culture in India where it was used as a culinary spice and had some religious significance.
The name derives from the Latin terra merita “meritorious earth” referring to the colour of ground turmeric which resembles a mineral pigment. In many languages turmeric is simply named as “yellow root”.
Other Names
Indian Saffron, Tumeric, Yellow Ginger
French: curcuma, saffron des Indes
German: Gelbwurz
Italian; curcuma
Spanish: curcuma
Arabic: kharkoum
Burmese: fa nwin
Chinese: wong geung fun
Indian: haldee, haldi, huldee, huldie
Indonesian: kunjit, kunyit
Malay: kunjit
Sinhalese: kaha
Tamil: munjal
Turmeric has a peppery, warm and bitter flavor and a mild fragrance slightly reminiscent of orange and ginger, and while it is best known as one of the ingredients used to make curry, it also gives ballpark mustard its bright yellow color.
Health Benefits
Turmeric (Curcuma longa), the bright yellow of the spice rainbow, is a powerful medicine that has long been used in the Chinese and Indian systems of medicine as an anti-inflammatory agent to treat a wide variety of conditions, including flatulence, jaundice, menstrual difficulties, bloody urine, hemorrhage, toothache, bruises, chest pain, and colic.
Anti-Inflammatory
The volatile oil fraction of turmeric has demonstrated significant anti-inflammatory activity in a variety of experimental models. Even more potent than its volatile oil is the yellow or orange pigment of turmeric, which is called curcumin. Curcumin is thought to be the primary pharmacological agent in turmeric.
An Effective Treatment for Inflammatory Bowel Disease
Curcumin may provide an inexpensive, well-tolerated, and effective treatment for inflammatory bowel disease (IBD) such as Crohn's and ulcerative colitis, recent research suggests.
Relief to Rheumatoid Arthritis
Clinical studies have substantiated that curcumin also exerts very powerful antioxidant effects. As an antioxidant, curcumin is able to neutralize free radicals, chemicals that can travel through the body and cause great amounts of damage to healthy cells and cell membranes. This is important in many diseases, such as arthritis, where free radicals are responsible for the painful joint inflammation and eventual damage to the joints. Turmeric's combination of antioxidant and anti-inflammatory effects explains why many people with joint disease find relief when they use the spice regularly.
Help for Cystic Fibrosis Sufferer
Curcumin, the major constituent of turmeric that gives the spice its yellow color, can correct the most common expression of the genetic defect that is responsible for cystic fibrosis, suggests an animal study published in the Science (April 2004). Cystic fibrosis, a fatal disease that attacks the lungs with a thick mucus, causing life-threatening infections, afflicts about 30,000 American children and young adults, who rarely survive beyond 30 years of age. The mucus also damages the pancreas, thus interfering with the body-ability to digest and absorb nutrients.
Cancer Prevention
Curcumin's antioxidant actions enable it to protect the colon cells from free radicals that can damage cellular DNA—a significant benefit particularly in the colon where cell turnover is quite rapid, occuring approximately every three days. Because of their frequent replication, mutations in the DNA of colon cells can result in the formation of cancerous cells much more quickly. Curcumin also helps the body to destroy mutated cancer cells, so they cannot spread through the body and cause more harm. A primary way in which curcumin does so is by enhancing liver function. Additionally, other suggested mechanisms by which it may protect against cancer development include inhibiting the synthesis of a protein thought to be instrumental in tumor formation and preventing the development of additional blood supply necessary for cancer cell growth.
Inhibit Cancer Cell Growth and Metastases
Epidemiological studies have linked the frequent use of turmeric to lower rates of breast, prostate, lung and colon cancer; laboratory experiments have shown curcumin can prevent tumors from forming; and research conducted at the University of Texas suggests that even when breast cancer is already present, curcumin can help slow the spread of breast cancer cells to the lungs in mice. How did curcumin help? "Curcumin acts against transcription factors, which are like a master switch," said lead researcher, Bharat Aggarwal. "Transcription factors regulate all the genes needed for tumors to form. When we turn them off, we shut down some genes that are involved in the growth and invasion of cancer cells."
Tumeric and Onions May help Prevent Colon Cancer
Curcumin, a phytonutrient found in the curry spice turmeric, and quercitin, an antioxidant in onions, reduce both the size and number of precancerous lesions in the human intestinal tract, shows research published in the August 2006 issue of Clinical Gasteroenterology and Hepatology. While simply consuming curry and onions may not have as dramatic an effect as was produced in this study, this research clearly demonstrates that liberal use of turmeric and onions can play a protective role against the development of colorectal cancer. And turmeric doesn't have to only be used in curries. This spice is delicious on healthy sautéed apples, and healthy steamed cauliflower and/or green beans and onions. Or, for a flavor-rich, low-calorie dip, try adding some turmeric and dried onion to creamy yogurt.
Tumeric Teams Up with Couliflower to Halt Prostate Cancer
The researchers believe the combination of cruciferous vegetables and curcumin could be an effective therapy not only to prevent prostate cancer, but to inhibit the spread of established prostate cancers. Best of all, this combination-cauliflower spiced with turmeric-is absolutely delicious! For protection against prostate cancer, cut cauliflower florets in quarters and let sit for 5-10 minutes; this allows time for the production of phenethyl isothiocyanates, which form when cruciferous vegetables are cut, but stops when they are heated. Then sprinkle with turmeric, and healthy sauté on medium heat in a few tablespoons of vegetable or chicken broth for 5 minutes. Remove from the heat and top with olive oil, sea salt and pepper to taste.
Reduce Risk of Childhood Leukemia
"Some of the known risk factors that contribute to the high incidence of childhood leukemia are the interaction of many lifestyle and environmental factors. These include prenatal or postnatal exposure to radiation, benzene, environmental pollutants and alkylating chemotherapeutic drugs. Our studies show that turmeric-and its colouring principle, curcumin-in the diet mitigate the effects of some of these risk factors."
Nagabhushan has shown that the curcumin in turmeric can:
- inhibit the mutagenicity of polycyclic aromatic hydrocarbons (PAHs) (carcinogenic chemicals created by the burning of carbon based fuels including cigarette smoke)
- inhibit radiation-induced chromosome damage
- prevent the formation of harmful heterocyclic amines and nitroso compounds, which may result in the body when certain processed foods, such as processed meat products that contain nitrosamines, are eaten irreversibly inhibit the multiplication of leukemia cells in a cell cultur
Improver Liver Function
In a recent rat study conducted to evaluate the effects of turmeric on the liver's ability to detoxify xenobiotic (toxic) chemicals, levels of two very important liver detoxification enzymes (UDP glucuronyl transferase and glutathione-S-transferase) were significantly elevated in rats fed turmeric as compared to controls. The researchers commented, "The results suggest that turmeric may increase detoxification systems in addition to its anti-oxidant properties...Turmeric used widely as a spice would probably mitigate the effects of several dietary carcinogens."
Cardiovascular Protection
Curcumin may be able to prevent the oxidation of cholesterol in the body. Since oxidized cholesterol is what damages blood vessels and builds up in the plaques that can lead to heart attack or stroke, preventing the oxidation of new cholesterol may help to reduce the progression of atherosclerosis and diabetic heart disease. In addition, turmeric is a good source of vitamin B6, which is needed to keep homocysteine levels from getting too high.
Homocysteine, an intermediate product of an important cellular process called methylation, is directly damaging to blood vessel walls. High levels of homocysteine are considered a significant risk factor for blood vessel damage, atherosclerotic plaque build-up, and heart disease; while a high intake of vitamin B6 is associated with a reduced risk of heart disease.
Tumeric Lowers Cholesterol
Tumeric's cholesterol-lowering effects are the result of the curry spice's active constituent, curcumin, which research reveals is a messaging molecule that communicates with genes in liver cells, directing them to increase the production of mRNA (messenger proteins) that direct the creation of receptors for LDL (bad) cholesterol. With more LDL-receptors, liver cells are able to clear more LDL-cholesterol from the body.
Protecting Against Alzheimer's Disease
A number of studies have suggested that curcumin, the biologically active constituent in turmeric, protects against Alzheimer's disease by turning on a gene that codes for the production of antioxidant proteins. A study published in the Italian Journal of Biochemistry (December 2003) discussed curcumin's role in the induction of the the heme oxygenase pathway, a protective system that, when triggered in brain tissue, causes the production of the potent antioxidant bilirubin, which protects the brain against oxidative (free radical) injury. Such oxidation is thought to be a major factor in aging and to be responsible for neurodegenerative disorders including dementias like Alzheimer's disease.
The most active ingredient in turmeric root, bisdemethoxycurcumin, boosts the activity of the immune system in Alzheimer's patients, helping them to clear the amyloid beta plaques characteristic of the disease.
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