Twenty-three healthy adults with normal weight and twenty-three healthy adults with overweight consumed a standardized breakfast after a 12-hour fast. Two hours later they were given 50 g of available carbohydrates from the two preloads (enriched orange juice or control orange juice) in a random order, and 3 hours after the preload they were offered an ad libitum lunch. Foods were weighed at the time of serving and any leftovers were weighed again after lunch to determine the amount of food consumed. There was a washout period of at least one week between the two visits. Fingertip capillary blood glucose samples were collected at baseline and at several time points after food intake. Visual analog scales (VAS) of 100 mm were collected to assess subjective appetite. Blood pressure was measured at several time-points.

Twenty-three healthy adults with normal weight and twenty-three healthy adults with overweight consumed a standardized breakfast after a 12-hour fast. Two hours later they were given 50 g of available carbohydrates from the two preloads (enriched orange juice or control orange juice) in a random order, and 3 hours after the preload they were offered an ad libitum lunch. Foods were weighed at the time of serving and any leftovers were weighed again after lunch to determine the amount of food consumed. There was a washout period of at least one week between the two visits. Fingertip capillary blood glucose samples were collected at baseline and at several time points after food intake. Visual analog scales (VAS) of 100 mm were collected to assess subjective appetite. Blood pressure was measured at several time-points.

Twenty-three healthy adults with normal weight and twenty-three healthy adults with overweight consumed a standardized breakfast consisting of 2 slices of white bread and honey (350 kcal in total) after a 12-hour fast. Two hours later they were offered 347 mL of the enriched orange juice (containing 50 g available carbohydrates), and 3 hours after the preload they were offered an ad libitum lunch (chicken breast with white rice). Foods were weighed at the time of serving and any leftovers were weighed again after lunch to determine the amount of food consumed. Fingertip capillary blood glucose samples and visual analog scales (VAS) of 100 mm were collected at baseline and at 60, 120, 135, 150, 180, 210, 240, 270, 300, 330, 360, 390, and 420 minutes after breakfast consumption. Blood pressure was measured at baseline, 120, 300, and 420 minutes.

Useful change in subjective appetite using visual analogue scales (VAS). Participants rated their hunger, desire to eat, perceived fullness, thirst, preoccupation with food, pleasure of eating the consumed test food, and thirst, after eating on a horizontal line VAS, with a line length of 100 mm and width of 3 desktop publishing points, that was black, had flat line endpoints, had an ascending numerical order of scale endpoints [i.e., "0" and "10", for example neither hungry (0 mm), full (100 mm) or have desire for food in the middle (50 mm)], and used "0" and "100" as numerical anchors below the left and right endpoints, respectively.

Clinically significant difference in energy intake (ad libitum lunch) two hours after the two different preloads consumption, as well as the next 24 hours after the intervention (actual weighing of foods consumed and leftovers, and 24-hour recall).

Clinically significant change in capillary blood glucose levels between the two interventions.

Clinically significant change in systolic and diastolic blood pressure between the two interventions.