4. Vitamin C
Fresh jalapeno peppers are a rich source of vitamin C. Ripe fruits have more of this vitamin than raw greens. 100 g provides about 118.6 µg or about 198% of RDA.
Vitamin C is a potent water-soluble antioxidant. It is required for collagen synthesis within the body. Collagen is the main structural protein needed for maintaining the integrity of blood vessels, skin, tissues, organs, and bones.