They have amazingly high levels of vitamins and minerals i.e 100 g provides (in % of recommended daily allowance):
240% of vitamin-C (Ascorbic acid)
39% of vitamin B-6 (Pyridoxine)
32% of vitamin A
14% of copper
13% of iron
7% of potassium
-Chilies contain capsaicin, which has anti-bacterial, anti-carcinogenic, analgesic and anti-diabetic properties.
-Studies have also verified that consumption of chilli can reduce LDL cholesterol levels in obese people.
-Chili peppers are a rich source of vitamin-C which is necessary for the collagen synthesis in the body.
-Collagen is the main structural protein in the body required for maintaining the integrity of blood vessels, skin, organs, and bones.
-Regular consumption of foods rich in vitamin C helps the body protect from scurvy; develop resistance against infectious agents (boosts immunity) and scavenge harmful, pro-inflammatory free radicals from the body.
-Chillies are also good in other antioxidants which help protect the body from free radicals generated during stress and illness.
-Chilies contain Potassium which is an important component of cell and body fluids that helps controlling heart rate and blood pressure.
-Also Manganese which is used by the body as a co-factor for the antioxidant enzyme, superoxide dismutase.
-Chilies are also good in B-complex group of vitamins such as niacin, pyridoxine (vitamin B-6), riboflavin and thiamin (vitamin B-1). The body requires these from external source to replenish.