杰西卡·刘易斯自2005年开始从事专业出版工作，是一名注册营养师和营养学家。她的作品经常出现在《国家邮报》和《氧气》杂志上。She holds degrees from the University of Guelph and McMaster University. A marathon runner and yoga enthusiast, she is also interested in alternative medicine.
