Watermelon high in a Potentially Libido-Boosting Phytonutrients

This popular summer fruit is low in calories, but also high in potentially libido-boosting phytonutrients.

In 2008, Texas A&M research suggested that the lycopene, citrulline, and beta-carotene found in watermelon may help relax blood vessels, and provide a natural enhancement for revving up your sex drive.