What is grapefruit relative?

to other citrus fruits.

Grapefruit is a citrus fruit that is closely related to other citrus fruits like oranges, lemons, and limes. It is believed to be a cross between a sweet orange and a pomelo, which is another type of citrus fruit. Grapefruit is larger than most other citrus fruits, and it has a tart taste that makes it a popular ingredient in juices and cocktails. Grapefruit is also unique among citrus fruits in that it contains compounds that can interfere with the metabolism of certain medications. As a result, people who take medication should talk to their doctor before consuming grapefruit or grapefruit juice.