Chili powder is the dried, pulverized fruit of one or more varieties of chili pepper, sometimes with the addition of other spices. It is used as a spice to add pungency or piquancy and flavor to dishes.a powdered mixture of dried chilies, cumin, oregano, garlic, etc., used as a seasoning.

Chili powder possesses a good amount of manganese, which is an essential cofactor in a number of enzymes important in energy production and antioxidant defenses. For example, some enzymes disarm free radicals produced within the mitochondria (the energy production factories within our cells), which require manganese.
The amount of iron in chili powder leads to increased hemoglobin production and increases blood flow. Proper amounts of oxygen and iron in the brain lead to improved cognitive performance and a decrease in cognitive disorders like Alzheimer’s disease and dementia.
Vitamin C is a potent natural water-soluble antioxidant that helps the body develop resistance against infectious agents and eliminates cancer-causing free radicals in the body.

Like most foods, chili peppers can have adverse effects in some individuals, and many people do not like its burning hot flavor.Burning Sensation.Chili peppers are well known for their hot, burning flavor.Over time, regular exposure to capsaicin may cause certain pain neurons to become insensitive to further pain.
The substance responsible is capsaicin, which binds with pain receptors and causes an intense burning sensation. For this reason, an extract of chili peppers called “oleoresin capsicum” is the main ingredient of pepper sprays (27).In high amounts, it causes severe pain, inflammation, swelling, and redness (28).