A/Prof Collins has been a qualified nutritionist for over 25 years, completing his undergraduate degree in 1996 before going on to complete an MSc in Nutrition & Metabolism, and a PhD focusing on energy expenditure and body composition. His ongoing interests lie in obesity, exercise nutrition, body composition, and energy metabolism all as can be applied to weight loss/maintenance and metabolic health. Current research includes exercise intensity and energy balance, intermittent fasting, meal timing and composition. Specifically the use of carbohydrate manipulation for metabolic health.