 In this pilot study, we tested the effect of increasing sucrose intake for one week on body composition and blood pressure. We found that there was a significant increase in systolic blood pressure following 120 grams of sucrose intake, but no other significant changes to body weight, BMI, percentage protein, fat or water. Additionally, we showed that varying doses of sucrose over a one-week period are an acceptable addition to the habitual diet and demonstrate the feasibility of larger-scale studies of chronic sucrose supplementation. This article was authored by Sophie Scott, Julie Young and John K. Lodge.