u003cstrongu003eBell peppersu003c/strongu003e are low in calories and are loaded with good nutrients. All varieties are excellent sources of vitamins A and C, potassium, folic acid, and fiber.u003cbr/u003eu003cstrongu003eRed bell peppersu003c/strongu003e pack the most nutrition, because they've been on the vine longest. u003cstrongu003eGreen peppersu003c/strongu003e are harvested earlier, before they have a chance to turn yellow, u003cstrongu003eorangeu003c/strongu003e, and then red. Compared to u003cstrongu003egreen bell peppersu003c/strongu003e, the red ones have significantly more beta-carotene and vitamin C.