
This precious piece of produce serves two purposes in annihilating your allergy symptoms: It’s high in allergy-relieving vitamin C and it’s a member of the crucifer family, plants that have been shown to clear out blocked-up sinuses. Researchers have found about 500 milligrams (mg) of vitamin C a day can ease allergy symptoms, and just 1 cup of raw broccoli packs about 80 mg. For another fall-flavored vitamin C boost, try cabbage or cauliflower, two other, related cruciferous vegetables. Both pack 56 mg of vitamin C per cooked cup.