Here are some of my favorite:

Pomegranate: a potent antioxidant and high in fiber

Eggplant: rich in iron, calcium, and vitamin K

Fennel: great for digestive health along with respiratory infections

Carrots: rich in carotenoids which are strong antioxidants

Squash: rich source of vitamin A and C, magnesium, fiber, folate, riboflavin, phosphorus, potassium and vitamin B6. In addition, it is high in manganese, a mineral which helps the body process fats, carbohydrates, and glucose.

Pumpkin: contains vitamin A, flavonoid poly-phenolic antioxidants such as leutin, xanthin, and carotenes in abundance.

Grapes: the fleshy part of grapes as well as the extract of its seeds contains proanthocyanidins and resveratrol which are powerful antioxidants

Brussel Sprouts: A host of antioxidant ingredients  including vitamins C, E, and A, as well as the mineral manganese. Also, flavonoid antioxidants like isorhamnetin, quercitin, and kaempferol also serve well to protect against oxidative stress on the body's cells.

Broccoli: rich in vitamin A, iron, vitamin K, B-complex vitamins, zinc, phosphorus and phyto-nutrients