Lyle McDonald was a video game playing nerd until high school when, through mandatory athletics he became involved in weight training, cycling, martial arts and other sports.
This led him to UCLA to study kinesiology. During this time, he became involved in the new sport of inline skating and began racing. It was during this time that he became interested in the science of performance including nutrition, training and supplementation. He has competed in inline skating, ice speed skating and powerlifting and worked with athletes ranging from bodybuilders to endurance athlete on their training and nutrition.
He wrote his first book, a reference guide to ketogenic/low-carbohydrate diets in 1998 and has written 12 books since then on various topics ranging from fat loss to sports nutrition (this includes perhaps the first formalized approach to Flexible Dieting written in 2004). Since 2015, he has been working on a book on women’s physiology, nutrition, fat loss and training.