Curcuminoids are a group of natural compounds found in the turmeric plant, Curcuma longa. The most well-known and studied curcuminoid is curcumin, which is known for its anti-inflammatory, antioxidant, and anticancer properties. Other curcuminoids found in turmeric include demethoxycurcumin and bisdemethoxycurcumin. Research on curcuminoids has shown promising results in various areas of health, including arthritis, cancer, cardiovascular disease, and neurodegenerative diseases like Alzheimer's. These compounds are also being studied for their potential in treating inflammatory bowel disease, diabetes, and skin conditions. Overall, curcuminoids have demonstrated potential health benefits, but more research is needed to fully understand their mechanisms of action and optimal dosages for specific health conditions.