As from May 2014, Jennifer Lopez is vegan! She told New York radio station Z100 'Being vegan, it's basically no dairy, no meat, everything is plant based and comes from the ground'. 'You do feel better. I do recommend the vegan diet because you wake up and feel great!'
http://www.z100.com/articles/z100-news-451815/jennifer-lopez-discusses-h...(See Full Audio Interview, 9:25 mins in)