Grapefruit

Peak Season: October to June

Perfect Pick: Opt for a heavy fruit (a sign of juiciness) with thin skin that is a tad responsive to a squeeze. Small imperfections in color and skin surface are not detrimental to the sweet-tart flavor. Yet, avoid any that are very rough or have soft spots. The same criteria apply for oranges.

Handle with Care: Store refrigerated for 2 to 3 weeks.

The Payoff: The anticancer phytonutrient lycopene and 120% of daily vitamin C needs in 1 cup.