A pilot feasibility study investigating the impact of increasing sucrose intakes on body composition and blood pressure

Scott, Sophie, Young, Julie and Lodge, John (2021) A pilot feasibility study investigating the impact of increasing sucrose intakes on body composition and blood pressure. Journal of Nutritional Science, 10. e60. ISSN 2048-6790

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Abstract

Epidemiological and intervention studies have reported negative health effects of sucrose intake, but many of these studies were not representative of typical dietary habits. In this pilot study, we aimed to test the effect of increasing sucrose intakes for 1 week on body composition and blood pressure and explore the feasibility of consuming high intakes of sucrose in addition to a habitual diet. In a randomised crossover design study, twelve healthy participants (50 % female, age 28⋅4 ± 10 years, BMI 25 ± 3 kg/m2), consumed either 40, 80 or 120 g sucrose in 500 ml water in addition to their habitual diet every day for 1 week, with a 1-week washout between treatment periods. Body composition (assessed using bioelectrical impedance) and blood pressure measurements were taken before and after each intervention phase. All participants reported no issues with consuming the sucrose dose for the intervention period. There was a significant increase in systolic blood pressure following 120 g sucrose intake (P = 0⋅006), however there was no significant changes to blood pressure, body weight, BMI, percentage protein, fat or water (P > 0⋅05) when comparing change from baseline values. There was also no effect of sucrose intakes on energy or macronutrient intakes during the intervention (P > 0⋅05). We show here that varying doses of sucrose over a 1-week period have no effect on body composition or blood pressure. The amounts of sucrose used were an acceptable addition to the habitual diet and demonstrate the feasibility of larger-scale studies of chronic sucrose supplementation.

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