What is Turmeric?
The spice turmeric, derived from the rhizome of Curcuma Longa L, has been used for centuries in food preparation and traditional medicines to treat numerous diseases and conditions. Turmeric might as well be one of the most beneficial herbal medicinal plants.
The primary biologically active constituent of turmeric is the polyphenol, curcumin, an orange-yellow powder with potent anti-inflammatory and antioxidant properties, contributing to curcumin's potential to prevent such conditions as cancer, Alzheimer’s disease, heart disease, diabetes, allergies, and other chronic diseases.
The health benefits of turmeric
Oxidative damage is one of the mechanisms behind aging and many diseases. It involves free radicals, highly reactive molecules with unpaired electrons.
The main reason antioxidants are so beneficial is that they protect the body from free radicals. And curcumin is a powerful scavenger of oxygen-free radicals. (1) It can defend lipids or hemoglobin against oxidation. It can significantly inhibit reactive oxygen species such as H2O2, superoxide anions, and nitrite radical generation by activated macrophages.
One in vitro study measuring the effect of curcumin on an inducible stress protein resulted in enhanced cellular resistance to oxidative damage. (2)
So, curcumin not only neutralizes free radicals, but it also stimulates your body's antioxidant enzymes.
Turmeric and Brain Health
There is evidence that curcumin may lessen the development and progression of Alzheimer's disease. It exhibits anti-inflammatory properties that could counteract neurodegeneration.
It works to reduce inflammation and the build-up of protein plaques in the brain that are characteristic of Alzheimer's patients.
There is also some evidence that curcumin can help in depression and mood disorders. Turmeric supplements lowered depression and anxiety symptoms and depression scores in multiple trials. (3)
Curcumin has been studied as a beneficial herb in cancer treatment and has been found to affect cancer growth, development, and spread. (4)
Several studies demonstrated that curcumin could inhibit carcinogenesis at three stages: Angiogenesis, tumor promotion, and tumor growth. In two studies of colon and prostate cancer, curcumin inhibited cell proliferation and tumor growth. (5)
Turmeric and curcumin are also able to suppress the activity of several common mutagens and carcinogens.
The anti-cancer effects of turmeric and curcumin have been related to direct antioxidant and free-radical scavenging effects and their ability to indirectly increase glutathione levels, thereby aiding in hepatic detoxification of mutagens and carcinogens and inhibiting nitrosamine formation.
Inflammation is a necessary process in the body, as it fights off harmful invaders and repairs damage caused by bacteria, viruses, and injuries. However, long-term inflammation has been implicated in most chronic conditions such as heart disease and cancer, so it must be controlled, which is where anti-inflammatory compounds come in.
Curcumin in turmeric has proven solid anti-inflammatory properties that block the action of inflammatory molecules in the body. Studies show positive effects of curcumin on people suffering from conditions such as rheumatoid arthritis (6) and inflammatory bowel disease. (7)
Safety and Side Effects
Turmeric is generally considered safe. Few side effects have been reported, and only when taken in higher doses, these side effects include nausea and diarrhea. Doses up to 8 grams aren't associated with adverse effects.
You might also like:
(5)Curcumin, a natural plant phenolic food additive, inhibits cell proliferation and induces cell cycle changes in colon adenocarcinoma cell lines by a prostaglandin-independent pathway - ScienceDirect