As of 2015, turmeric is likely safe to take for lengths of time up to eight months, states MedlinePlus. It is also considered effective for use in people with upset stomach and osteoarthritis.Continue Reading
It is thought that the main ingredient in turmeric, called curcumin, is able to reduce swelling, as stated by MedlinePlus. However, more study is needed in this area. The effects of turmeric and curcumin for disorders and conditions such as Alzheimer's, eye inflammation, gum disease, kidney inflammation and tuberculosis are still being studied. Until research is completed, turmeric is considered lacking in evidence in treating these conditions.
There are also a number of safety concerns and warnings associated with this herbal supplement, reports MedlinePlus. The supplement usually does not cause side effects. However, some may experience upset stomach, nausea diarrhea and dizziness. There have also been cases reported where taking a very large amount of turmeric has caused an abnormal heart rhythm, and MedlinePlus suggests avoiding large doses of the supplement.
Women who are pregnant are advised that turmeric is safe in amounts used for food but unsafe in larger amounts when taken as medicine, according to MedlinePlus. The supplement may promote a menstrual period and place the pregnancy at risk. Turmeric may also slow blood clotting, so people with bleeding problems or those about to have surgery are advised to avoid taking the supplement.Learn more about Vitamins & Supplements