Acute consumption of 100% pure orange juice reduces hunger in healthy adults.

Abstract

OverviewData from the National Health and Nutrition Examination study, 2003–2006, suggests that consumption of 100% pure orange juice is associated with a decreased risk of obesity which may in part be explained by research that suggests that oranges have a strong satiating effect. The objective of this study was to understand the effects of 100% pure orange juice on self reported ratings of hunger and fullness.MethodsIn this randomised cross over design study, 24 normal weight adult subjects (M=17,F=7) fasted for 12 hours and then consumed a standardized breakfast of toast and water followed by an 8 floz portion of either a water control or 100% pure orange juice. Self reported ratings of hunger and fullness (4 questions), measured by Visual Analogue Scales, were collected at baseline and every 15 minutes up to 2 hours.ResultsArea under the curve (AUC) analysis (figure 1) revealed that, compared to the control, consumption of 100% orange juice resulted in a significant decrease in all 4 ratings of hunger and fullness (p<0.01).ConclusionCompared to a water control 100% pure orange juice has the ability to reduce hunger ratings and increase fullness ratings. These observations may, in part, explain the decreased risk of obesity evident in consumers of this beverage, however consideration also needs to be given to the additional calories consumed from the orange juice. Further investigations would be required to determine the role of 100% pure orange juice in weight management.