Alan is an Accredited Practising Dietitian who completed a PhD at the University of Sydney on the association between carbohydrate and the risk of developing lifestyle-related diseases. He completed a degree in Nutrition and Food Science in 1992, Dietetics in 1993 and a Certificate 111 in Commercial Cookery in 2018 and is a Chef. He has co-authored nearly 40 peer reviewed articles and has presented his research at scientific conferences around the globe. He is the author of 5 books including The Good Carbs Cookbook, The Ultimate Guide to Sugars and Sweeteners, and Reversing Diabetes.