The protocol will assess the following outcomes:
1. The ultimate fate of this increased hepatic fatty acid production following a high fructose vs. glucose diet
2. The effect of a high fructose vs. glucose diet on liver ATP stores
3. The effect of a high fructose vs. glucose diet on markers of oxidative stress
4. The effect of a high fructose vs. glucose diet on cardiovascular status
Factors critical to carbohydrate metabolism such as systemic insulin resistance, body composition, energy expenditure, physical activity will also be assessed.
32 centrally overweight healthy males with a low baseline fructose intake will be recruited. They will be randomised double blindly to receive 25% of their dietary energy requirements from either fructose or glucose for 14 days.
The sugars will first be taken in an energy balanced and then an overfeeding setting.
