SOURCE: DAVID KARP, University of California, Riverside No other fruit genus can boast such pedigree, and new research is bringing clarity to the origin of citrus. Grapefruits are a human ...

The healthiest fruits include blueberries, bananas, avocados, and citrus fruits. The healthiest vegetables include kale, spinach, carrots, and sweet potatoes. Fruits and vegetables are healthy ...

From sweet mandarins and sour lemons to complex pomelos and tart kumquats, citrus fruits have an agricultural story stretching back thousands of years and are used for much more than just food.