Tennis stars Venus and Serena Williams join the growing list of celebrities who are embracing a plant-based diet by going vegan. Venus has made the switch due to health reasons and her sister, Serena, has made the switch to show her support.
The UK's Daily Mail reports that after dropping out of the U.S. Open this summer, Venus discovered that she was suffering from Siogren's disease -- an 'incurable immune system disease that threatened to end her career.' The condition affects approximately 4 million people in America, most of whom are women over 40.
Venus explained to People magazine how the disease made her incredibly fatigued: