As a member of the Zingiberaceae family, turmeric (Curcuma longa) is a common medicinal herb in India. Most notably, curcumin, the main ingredient in turmeric, possesses antioxidant potential among other biological characteristics. Taking turmeric may reduce the risk of several cancers, according to epidemiological observations. It also has anti-inflammatory, anti-angiogenic, anti-oxidant, wound-healing, and anti-cancer characteristics, among other biological benefits that help prevent disease in humans. This review highlights the most intriguing biological effects of curcumin. A popular and widely used rhizomatous medicinal plant in India, curcuma longa, also known as turmeric, is a member of the Zingiberaceae family. Turmeric contains three compounds called curcuminoids: curcumin, demethoxycurcumin (DMC), and bisdemethoxycurcumin (BDMC). An alternative name for curcumin is Differentiuloylmethane (1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione), which is well known for its numerous biological properties, including anti-inflammatory, antiviral, antioxidant, anti-cancer, antibacterial, anti-asthmatic, anti-diabetic, anti-venom, anti-obesity, wound-healing, and more. Here we have reviewed the outcomes of these exercises as well as a number of clinical studies. Curcumin is a tautomeric compound that forms an enolic form in organic solvents and a keto form in water.