The substances in paprika that seem to enhance the health of our eyes are vitamin E, beta-carotene, lutein and zeaxanthin. In particular, lutein and zeaxanthin act as antioxidants and prevent eye damage.
Certain paprika varieties, especially hot ones, contain the valuable substance capsaicin. Capsaicin is thought to bind to the receptors on our nerve cells and reduce inflammation. That's why it protects against a variety of anti-inflammatory and autoimmune diseases, such as arthritis, nerve damage and digestive problems.
Capsanthin, a carotenoid found in the popular spice, raises HDL cholesterol levels, which is associated with a reduced risk of heart disease. The carotenoids in paprika can also help lower total and LDL cholesterol levels associated with an increased risk of heart disease. However, more research is needed to prove these relationships.
Various paprika carotenoids, such as beta carotene, lutein and zeaxanthin have been shown to fight oxidative stress, which is thought to increase the risk of certain cancers.
Paprika is rich in iron and vitamin E, two micronutrients vital to a healthy circulatory system.