Below outlined are the 5 most common turmeric side effects as reported in some medical cases. If you happen to experience any of these conditions, proceed with extreme caution and use the supplements only under the advice of a certified health care provider.

Blood Thinning. Taking turmeric supplements may slow blood clotting. When consuming turmeric or turmeric supplements, avoid combining it with anticoagulant and/or antiplatelet drugs. If you are on a blood thinning medication, consult with your health provider before consuming turmeric or turmeric supplements in food or taking turmeric supplements.

Examples of medications that act as blood thinners include aspirin, ibuprofen and others. Refrain consuming turmeric with these or related drugs.

Turmeric or turmeric supplements can slow blood clotting, avoid consuming them if you are on a herbal supplements or medication that slows clotting. There are many websites that mentions angelica, clove, danshen, garlic, ginger, ginkgo, Panax ginseng, red clover, and willow as examples.

Since turmeric has blood thinning side effects, stop taking turmeric and turmeric supplements at least a week or two before any surgical procedure that you are will be going through.

Diabetes
It is evident that Turmeric may lower blood sugar. Avoid turmeric and turmeric supplements if you take diabetes medications. This is because turmeric could cause your blood sugar to fall even further. This could result in hypoglycemia.

Gallbladder.
There are many websites that recommend avoiding turmeric if you currently are facing problems with your gallbladder. If you have gallstones or a bile duct obstruction, consuming turmeric and turmeric supplements may cause your condition to worsen.

Pregnancy.
Turmeric and turmeric supplements should be best avoided during pregnancy. According to a number of medical websites, turmeric may stimulate the uterus or promote a menstrual period. It is also not advisable to consume turmeric or turmeric supplements when breast feeding.

Stomach Complications.
Interference with antacid medications is a possible side effect of turmeric. Turmeric and turmeric supplements may cause increased stomach acid if taken with antacid drugs such as Tagamet, Pepcid, Zantac, Nexium, Prevacid etc.