The present study sought to investigate the effects of acute dietary changes on estimates of body composition. Specifically, the impact of an acute high-carbohydrate diet (9 g/kg body weight of carbohydrate) and an acute very low-carbohydrate diet (1 - 1.5 g/kg body weight of carbohydrate) were examined.

Inclusion Criteria:

• Generally healthy
• Recreationally active (>150 min/week of moderate or vigorous physical activity)
• Pre-menopausal with regularly occurring menstrual cycles over past 6 months (in females only)

Exclusion Criteria:

• Failure to meet inclusion criteria
• Commencement or cessation of taking the dietary supplement creatine within the past month
• Pregnant or may become pregnant during the study
• Known or suspected food allergy to any items used in study
• Presence of medical condition that could reasonably be negatively affected by participation