Kathryn Marsden is an author and freelance health writer who has written for a wide range of magazines and newspapers. Her first book, The Food Combining Diet (1993), was an instant success and has been reprinted eighteen times. The Complete Book of Food Combining (2000) received rave reviews as one of the best – and easiest to follow – books available on health and diet. Good Gut Healing (2003), an extensively researched volume of effective solutions for digestive and bowel problems that no-one likes to discuss, was an Amazon top ten bestseller. Kathryn is published in fifteen languages, including Chinese, Russian, Hebrew, Bulgarian, Hungarian, Finnish, German, Spanish, Arabic and Swedish. She is now based in Spain, and her Good Gut Bugs, on probiotics, was published in 2010 by Piatkus/Little, Brown.